Relevant bibliographies by topics / Concrete - Creep and Shrinkage

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Concrete - Creep and Shrinkage'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 September 2023

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Journal articles on the topic "Concrete - Creep and Shrinkage"

1

Nesvetaev, G. V., Y. I. Koryanova, T. N. Zhilnikova, and A. V. Kolleganov. "To the Problem of Assessing the Level of Self- Stresses during the Formation of the Structure of Self-Compacting Concrete." Materials Science Forum 974 (December 2019): 293–98. http://dx.doi.org/10.4028/www.scientific.net/msf.974.293.

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Conditional quantitative criteria characterizing the shrinkage crack resistance of various concretes and a model describing the change in the proposed criteria depending on the magnitude of shrinkage deformation, creep coefficient, tensile strength kinetics and shrinkage strain kinetics for ordinary concrete and self-compacting concrete are proposed. The proposed criteria for the class C40/50 concrete have been calculated and it was shown that self-compacting concrete can potentially have higher crack resistance during shrinkage. To ensure high cracking resistance during shrinkage when choosing superplasticizers and mineral additives, attention should be paid to their effect on shrinkage, creep and E-modulus of the cement stone. It should exclude additives that increase the shrinkage and E-modulus and reduce creep of cement stone.
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Parfenov, S. G., and V. Ye Moschenkov. "EXPERIMENTAL STUDY OF CREEP AND SHRINKAGE STRAINS IN FINE- AGGREGATE CONCRETES." Proceedings of the Southwest State University 21, no. 4 (August 28, 2017): 13–20. http://dx.doi.org/10.21869/2223-1560-2017-21-4-13-20.

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The paper studies creep and shrinkage processes running in fine-aggregate concretes with plasto-elastic properties (deformations) under short-time loading are different from those of standard heavy concretes. Experimental studies of creep and shrinkage strains in fine-aggregate concretes that are based on sands with different fineness moduluses permit to compare prestress losses resulting from the creep and shrinkage of concrete. Usually these factors produce an aggregate effect, which makes the study of the processes that run in concrete under long-time influence noticeably complicated. There paper contains analysis results obtained by experimental studies of concrete prisms at different initial strains in the range of , with loading age of t= 14 or 28 days and different properties of concrete mixes. Concrete mix properties were modified by using sands with different fineness modulus. Likewise in order to determine creep and shrinkage deformations due to long-time loads the samples were tested under stress during 14, 73 and 180 days. All experimental data have been systematized in tables and are represented by diagrams. The analysis has helped to investigate the effects of relative stains on the creep deformation in concrete and to define the boundary line between linear and non-linear creep with relation to the stresses in concrete. Analytical description of non-linear deformations was performed with the help of N.H.Arutyunyan’ and I.I.Ulitsky methods. The resultant calculations formed a basis for the recommendations to simplify problem solving methods considering non-linear creep of concrete.
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Bideci, Alper, Özlem Sallı Bideci, Sabit Oymael, and Hasan Yıldırım. "Analysis of shrinkage and creep behaviors in polymer-coated lightweight concretes." Science and Engineering of Composite Materials 23, no. 1 (January 1, 2016): 77–83. http://dx.doi.org/10.1515/secm-2014-0028.

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AbstractThe creep and shrinkage properties of polymer-coated lightweight concretes were examined. Five-hundred-dose lightweight concretes were produced by coating pumice aggregates with three different polymers (Sonomeric1: SNMC, KB Pur 214: KBP, and Polipol3455: PLP). The 3-, 7-, and 28-day compressive strength values of the obtained lightweight concrete samples were determined, and the 840-h and 12-month creep and shrinkage deformations were measured. It was found that the ductility of the SNMC- and KBP-coated concrete samples increased, while their shrinkage deformation results decreased when compared with the control samples. In contrast, the ductility of PLP concrete samples decreased and the shrinkage deformation became higher. In conclusion, the use of SNMC- and KBP-coated pumice aggregates had a positive effect on the creep and shrinkage properties of the concrete. Furthermore, it was observed that the compressive strength values of the lightweight concretes made of the coated samples were higher than those of the control sample.
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Chen, Xu, Hua, Zhou, Wang, and Huang. "Modeling Shrinkage and Creep for Concrete with Graphene Oxide Nanosheets." Materials 12, no. 19 (September 26, 2019): 3153. http://dx.doi.org/10.3390/ma12193153.

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In this study, the shrinkage and creep of concrete containing graphene oxide (GO) nanosheets were experimentally and theoretically investigated. Experiments for the shrinkage and creep of concrete with 0.02% and 0.08% GO nanosheets by the weight of cement and common concrete were carried out. Subsequently, the influence of GO nanosheets on the shrinkage and creep of concrete was analyzed and discussed. A modified model was developed to accurately predict the shrinkage and creep of concrete containing GO nanosheets after models for predicting shrinkage and creep of common concrete were compared and the influential factors and application scope were determined. Results indicate that: (1) GO nanosheets can increase the shrinkage strain and reduce the creep coefficient of concrete, and (2) a modified ACI209 (92) model can accurately predict the shrinkage and creep of concrete containing GO nanosheets. Factors considering concrete strength can be introduced in the model to improve the model accuracy.
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Duan, Rui Fang, Xiu Fen Huang, and He Zhang. "Concrete Shrinkage and Creep Effect Prediction Model and the Influence Factors Analysis." Advanced Materials Research 756-759 (September 2013): 2051–54. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.2051.

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It is a complex problem that forecast and control the shrinkage and creep of concrete and influence on the performance of the structures.Through the conmparion of all kinds of common model,the article have also analysed the main influence factors about the concrete shrinkage and creep effect . The results showed that JTJ 85 model for shrinkage and creep effect tends to conservative calculation; the creep coefficient and shrinkage strain of JTG D62 model and the CEB-FIP model were basically consistent; and ACI 209 model underestimated the concrete shrinkage and creep effect. Theoretical depth of components was more sensitive to concrete shrinkage strain, and creep coefficient was smaller sensitivity; The effect of concrete creep increases with the decreasing of age at loading, when age of loading percentage increased from three to 28 days, the concrete creep effect of the terminal value reduced about 80%; The influence of environment average relative humidity on shrinkage and creep effect is more sensitive, when environment average relative humidity increased from 50% to 80%, creep coefficient nearly reduced about 30%,and shrinkage strain decreased 50%, in comparison, the influence of environment relative humidity chance on the concrete shrinkage effect is greater than that on creep effect.
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Zhang, Yun Guo, Zhi Min Wu, and Xi Wu. "Experimental Investigation on the Shrinkage and Creep Performance of Self-Compacting Lightweight Concrete." Advanced Materials Research 860-863 (December 2013): 1346–53. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1346.

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Several experimental investigations were conducted on the autogenous shrinkage and creep performances of two types of designed self-compacting lightweight concrete (SCLC). In order to explore the difference in long-term performance between SCLC and normal aggregate concrete, normal aggregate self-compacting concrete (SCC) and normal concrete (NC) are also designed in this study. The results indicate that the designed SCLC exhibits lower autogenous shrinkage at early age, even slight expansion during the first 10 days. After 6 months, the autogenous shrinkage of SCLC increases nearly equal to those of normal aggregate concrete. Compared with the reference concretes NC and SCC, the 360-day creep coefficient of SCLC is lower, but the specific creep is higher. It is also found that long-term creep coefficient and specific creep decrease with the increase of compressive strength of SCLC.
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Zhang, Rong Ling, Liang Wang, Chang An Yang, Bing Yang, Chang Yue Zhu, and Qiang Jian Hao. "Simulation Analysis of Shrinkage and Creep for Bowstring Arch Bridge Steel Tube Concrete in Different Specification." Applied Mechanics and Materials 178-181 (May 2012): 2219–23. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.2219.

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The actual bowstring arch CFST is taken as the background,the paper using finite element analysis method, researched the shrinkage and creep of combination of steel and concrete structure. Through the use of different countries regulation of shrinkage and creep of concrete, the effects of the structure deflection separately were studied ,then explain the different influence degree of different norms in the calculation of the creep and shrinkage of concrete; The paper also has also put forward the doubt about accurate calculation concrete filled steel tubular structure shrinkage and creep of concrete, it puts forward new requirements for the research and standards about steel tube concrete shrinkage and creep at last.
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Guo, Fei, Hong Gen Qin, Peng Fei Cao, Guan Guo Liu, and Yun Sheng Zhang. "Analysis on Creep Property and Model of Bridge Girder Concrete with Various Mix Proportions." Applied Mechanics and Materials 368-370 (August 2013): 1487–94. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.1487.

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Combined with the construction of Jinghang Canal Bridge of Jiangliu highway, shrinkage and creep property of the cast-in-situ high performance concrete of bridge girder was researched. The results showed early shrinkage and creep development of the high performance concrete was relatively rapid, and creep tended to be stable 120 days later. With the admixture increasing, shrinkage and creep of the concrete were reduced. Meanwhile, early creep rate deceased. Similar results applied to the reduction of sand rate and water-cement ratio. Based on creep prediction models both at home and abroad, hyperbolic power function and exponential function model were put forward, taking the influence of material parameter and environmental factors on shrinkage and creep into consideration. In accordance with the model, concrete creep formula was given out and would provide a relatively scientific basis for practical prediction of concrete creep.
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Mieszczak, Małgorzata, and Lucyna Domagała. "Lightweight Aggregate Concrete as an Alternative for Dense Concrete in Post-Tensioned Concrete Slab." Materials Science Forum 926 (July 2018): 140–45. http://dx.doi.org/10.4028/www.scientific.net/msf.926.140.

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The paper presents the results of tests conducted on two lightweight aggregate concretes made of new national Certyd artificial aggregate. This research is intended to first application of lightweight concrete to construct large-span post-tensioned slab. In addition to mechanical properties development, shrinkage and creep during 3 months of loading were tested. The obtained results are compared with theoretical results predicted by standard. Conducted tests indicated, that measured values of shrinkage and creep are significantly lower than predicted ones. This is promise for application of tested concrete in construction of post-tensioned slabs.
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Wang, Jian Qun, Zhi Fang, and Zhi Jian Tang. "The Experimental Study on Creep and Shrinkage of High Strength Concrete with Fly Ash." Advanced Materials Research 639-640 (January 2013): 423–26. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.423.

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Shrinkage and creep characteristics of concrete are significant factors in the design of prestressed concrete structures. With large scale/span concrete structures developed, the fly ash or other blends are added into high strength concrete to improve the mechanical properties and workability. As a result, the existing shrinkage and creep predicting models have certain limitations. The creep and shrinkage behavior of high strength concrete with fly ash are studied in this paper. Proper predicting model for shrinkage and creep of high strength concrete is recommended. The influence factor of fly ash is proposed as well. These conclusions would be of great useful for structures with fly ash concrete.
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Dissertations / Theses on the topic "Concrete - Creep and Shrinkage"

1

Cordoba, Benoît. "Creep and shrinkage of self-consolidating concrete (SCC)." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1317343151&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Bush, Richard James. "Creep and shrinkage of high strength concrete." Thesis, Cardiff University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531922.

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Altoubat, Salah Ahmed. "Early age stresses and creep-shrinkage interaction of restrained concrete." Full text available online (restricted access), 2000. http://images.lib.monash.edu.au/ts/theses/Altoubat.pdf.

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Townsend, Bradley Donald. "Creep and Shrinkage of a High Strength Concrete Mixture." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/32743.

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In addition to immediate elastic deformations, concrete undergoes time-dependent deformations that must be considered in design. Creep is defined as the time-dependent deformation resulting from a sustained stress. Shrinkage deformation is the time-dependent strain that occurs in the absence of an applied load. The total strain of a concrete specimen is the sum of elastic, creep, and shrinkage strains. Several test beams for the Pinnerâ s Point Bridge have been produced by Bayshore Concrete Products Corp., in Cape Charles, VA. These beams feature high strength concrete mix designs with specified 28-day compressive strengths of 55.2 MPa (8,000 psi) and 69.0 MPa (10,000 psi). These test beams were equipped with thermocouples to track interior concrete temperatures, and vibrating wire gages placed at the center of prestressing to record changes in strain. Laboratory creep and shrinkage testing was conducted on specimens prepared with identical materials and similar mixture proportions to those used at Bayshore. The temperature profile from the test beams during steam curing was used to produce match-cured specimens for laboratory testing. Two match cure batches were produced, along with two standard cure batches. Creep specimens from each batch were placed in the creep room and loaded to 30 percent of their after-cure compressive strength. The creep room had a temperature of 23.0 ± 1.7 °C (73.4 ± 3 ºF) and relative humidity of 50 ± 4 %. Companion shrinkage specimens were also placed in the creep room. Measurements were taken on the creep and shrinkage specimens using a Whittemore gage. Four cylinders were also equipped with embedded vibrating wire gages (VWGs) so that the interior and exterior strains could be compared. The Whittemore and VWG elastic and creep strains were similar, while the VWGs recorded significantly less shrinkage. The measured creep and shrinkage strains were compared to seven different models to determine which model was the most accurate. The models considered were ACI 209, ACI 209 modified by Huo, CEB Model Code 90, AASHTO-LRFD, Gardner GL2000, Tadros, and Bazant B3. The ACI 209 modified by Huo was most accurate in predicting time-dependent strains.
Master of Science
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Kim, Seunghwan. "Creep and Shrinkage Effects on Steel-Concrete Composite Beams." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/48427.

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Predicting the long-term behavior of steel-concrete composite structures is a very complex systems problem, both because obtaining reliable information on material properties related to creep and shrinkage is not straightforward and because it is not easy to clearly determine the correlation between the effects of creep and shrinkage and the resultant structural response. Slip occurring at the interface between the steel and concrete may also make prediction more complicated. While the short-term deflection of composite beams may be easily predicted from fundamental theories of structural mechanics, calculating the long-term deflection is complicated by creep and shrinkage effects on the concrete deck varying over time. There are as yet no comprehensive ways for engineers to reliably deal with these issues, and the development of a set of justifiable numerical standards and equations for composite structures that goes beyond a simple commentary is well overdue. As the first step towards meeting this objective, this research is designed to identify a simple method for calculating the long-term deformations of steel-concrete composite members based on existing models to predict concrete creep and shrinkage and to estimate the time-varying deflection of steel-composite beams for design purposes. A brief reexamination of four existing models to predict creep and shrinkage was first conducted, after which an analytical approach using the age-adjusted effective modulus method (AEMM) was used to calculate the long-term deflection of a simply-supported steel-concrete composite beam. The ACI 209R-92 and CEB MC90-99 models, which adopt the concept of an ultimate coefficient, formed the basis of the models developed and examples of the application of the two models are included to provide a better understanding of the process involved. For the analytical approach using the AEMM, the entire process of calculating the long-term deflections with respect to both full and partial shear interactions is presented here, and the accuracy of the calculation validated by comparing the model predictions with experimental data. Lastly, the way the time-dependent deflection varies with various combinations of creep coefficient, shrinkage strain, the size of the beam, and the span length, was analyzed in a parametric study. The results indicate that the long-term deflection due to creep and shrinkage is generally 1.5 ~ 2.5 times its short-term deflection, and the effects of shrinkage may contribute much more to the time-dependent deformation than the effect of creep for cases where the sustained live load is quite small. In addition, the composite beam with a partial interaction exhibits a larger mid-span deflection for both the short- and long-term deflections than a beam with a full shear interaction. When it comes to the deflection limitations, it turned out that although the short-term deflections due to immediate design live load satisfy the deflection criteria well, its long-term deflections can exceed the deflection limitations.
Master of Science
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Doan, Trung Van. "Long-term Deformations in Prestressed Concrete Box Girder Bridges." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12836.

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Long-span prestressed concrete box girder bridges are very sensitive to creep and shrinkage which may induce large deflection effects. Designers tend to rely on the simplified procedures contained in codes of practice for the estimation of service load behaviour. Such procedures usually oversimplify a complex problem and are often unreliable and conceptually misleading. This thesis presents a computer-based step by step numerical modelling procedure incorporating the programming language Matlab5 and the finite element package Strand7. The procedure is used to predict the long-term behaviour of the prestressed concrete box girder bridges built by the balanced cantilever construction over the Nepean River at Pheasants Nest, South of Sydney. Nine of the most common mathematical models for creep and shrinkage are used. The results are compared with survey measurements of the bridges since 1982 to present. It is found that only two prediction models give results which are in close agreement with measured deflections of the bridges. Sensitivity analyses are carried out and the results can be improved by varying model parameters such as concrete strength, humidity and concrete age at first loading. A number of recommendations for future research is presented. A simplified creep and shrinkage analysis procedure is also suggested for use in routine design of prestressed concrete structures.
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Haji, Arshad Abdul Aziz. "Moment continuity for simply supported pretensioned concrete bridges." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267146.

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Gribniak, Viktor. "Shrinkage Influence on Tension-Stiffening of Concrete Structures." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20091102_090235-06535.

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Due to the use of refined ultimate state theories as well as high strength concrete and reinforcement, resulting in longer spans and smaller depths, the serviceability criteria often limits application of modern reinforced concrete (RC) superstructures. In structural analysis, civil engineers can choose between traditional design code methods and numerical techniques. In order to choose a particular calculation method, engineers should be aware of accuracy of differ-ent techniques. Adequate modelling of RC cracking and, particularly, post-cracking behaviour, as one of the major sources of nonlinearity, is the most im-portant and difficult task of deformational analysis. In smeared crack approach dealing with average cracking and strains, post-cracking effects can be modelled by a stress-strain tension-stiffening relationship. Most known tension-stiffening relationships have been derived from test data of shrunk tension or shear mem-bers. Subsequently, these constitutive laws were applied for modelling of bend-ing elements which behaviour differs from test members. Furthermore, such re-lationships were coupled with shrinkage effect. Therefore, present research aims at developing a technique for deriving a free-of-shrinkage tension-stiffening re-lationship using test data of shrunk bending RC members. The main objective of this PhD dissertation is to investigate shrinkage influence on deformations and tension-stiffening of RC members subjected to short-term loading. Present... [to full text]
Pastaraisiais metais vis plačiau taikant stiprųjį betoną bei armatūrą, konst-rukcijų perdengiamos angos didėja, o skerspjūviai mažėja. Todėl projektuojant standumo (įlinkių) sąlyga vis dažniau tampa lemiamu veiksniu. Inžinieriai gelž-betoninių konstrukcijų apskaičiavimams gali taikyti empirinius normų arba skai-tinius metodus. Vieno ar kito skaičiavimo metodo parinkimas turi būti pagrįstas statistiniais tikslumo analizės rezultatais. Yra žinoma, kad adekvatus gelžbetoninio elemento pleišėjimo (ypač plyšių vystymosi stadijos) modeliavimas yra vienas sudėtingiausių netiesinės mechani-kos uždavinių. Toks uždavinys gali būti išspręstas taikant vidutinių plyšių kon-cepciją, kai pleišėjimo proceso modeliavimui naudojama tempiamojo betono vidutinių įtempių ir deformacijų diagrama. Dauguma tokių diagramų gautos, naudojant tempimo arba šlyties bandymo rezultatus. Pabrėžtina, kad šių diagra-mų taikymas lenkiamųjų gelžbetoninių elementų modeliavime duoda nemažas paklaidas. Kitas svarbus aspektas yra tai, kad gelžbetoniniuose bandiniuose, iki juos apkraunant trumpalaike apkrova, vyksta betono susitraukimas. Šiame darbe buvo siekiama sukurti metodą, leidžiantį pagal eksperimentinius lenkiamųjų gelžbetoninių elementų duomenis gauti tempiamojo betono vidutinių įtempių ir deformacijų diagramas, įvertinant betono susitraukimo įtaką. Pagrindinis diser-tacijos tikslas yra įvertinti ikieksploatacinių betono susitraukimo ir valkšnumo poveikį gelžbetoninių elementų, apkrautų trumpalaike apkrova... [toliau žr. visą tekstą]
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Vincent, Edward Creed. "Compressive Creep of a Lightweight, High Strength Concrete Mixture." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/30962.

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Concrete undergoes volumetric changes throughout its service life. These changes are a result of applied loads and shrinkage. Applied loads result in an instantaneous recoverable elastic deformation and a slow, time dependent, inelastic deformation called creep. Creep without moisture loss is referred to as basic creep and with moisture loss is referred to as drying creep. Shrinkage is the combination of autogeneous, drying, and carbonation shrinkage. The combination of creep, shrinkage, and elastic deformation is referred to as total strain. The prestressed concrete beams in the Chickahominy River Bridge have been fabricated with a lightweight, high strength concrete mixture (LTHSC). Laboratory test specimens have been cast using the concrete materials and mixture proportions used in the fabrication of the bridge beams. Two standard cure and two match cure batches have been loaded for 329 and 251 days, respectively. Prestress losses are generally calculated with the total strain predicted by the American Concrete Institute Committee 209 recommendations, ACI 209, or the European design code, CEB Model Code 90. Two additional models that have been proposed are the B3 model by Bazant and Baweja, and the GL2000 model proposed by Gardner and Lockman. The four models are analyzed to determine the most precise model for the LTHSC mixture. Only ACI 209 considered lightweight aggregates during model development. GL2000 considers aggregate stiffness in the model. ACI 209 was the best predictor of total strain and individual time dependent deformations for the accelerated cure specimens. CEB Mode Code 90 was the best predictor of total strain for the standard cure specimens. The best overall predictor of time dependent deformations was the GL2000 model for the standard cure specimens.
Master of Science
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10

Mucambe, Edson Silva David. "Creep and shrinkage prediction models for concrete water retaining structures in South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5185.

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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2010.
ENGLISH ABSTRACT: Concrete water retaining structures (WRS) in South Africa are under scrutiny due to the numerous durability problems that they have experienced lately; despite the efforts by local and national authorities in conserving these structures. At the heart of these problems are the creep and shrinkage phenomena. While shrinkage is the reduction of concrete volume with time, creep is defined as the time-dependent increase of concrete strain under constant or controlled stress. Both phenomena are affected by conditions to which WRS are exposed hence their accurate prediction is required. Numerical models have been developed to calculate the extent to which concrete creeps or shrinks over time. The objective of this thesis is to identify which of these models is better equipped to be used in South African WRS design. This is achieved through a systematic method that involves an investigation into the contents of these models and a statistical comparison of model calculations to WRS representative data. In partnership with reputable universities, a pioneer experimental creep and shrinkage data base is created in this project from which the WRS related data is selected. While investigating the contents of the numerical models, their applicability to South African WRS is identified and the integrity of model contents is assessed. Indeed, a few irregularities are found in the process and are presented in this thesis. The model calculations are statistically compared to data in the form of individual experiments as well as in the form of groups of experiments with similar concretes to find the ideal prediction model for different types of concretes as well. Also pioneered in this project is a weighted criteria and point system in which the findings of the model content assessment and statistical evaluations are incorporated. It is based on this system that conclusions are drawn and the most suitable prediction model for WRS design in South Africa is selected.
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Books on the topic "Concrete - Creep and Shrinkage"

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Farrington, Erik Wayne. Creep and shrinkage of high performance concrete. [Austin]: Center for Transportation Research, Bureau of Engineering Research, University of Texas at Austin, 1996.

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P, Bažant Z., L'Hermite Robert 1910-1982, International Union of Testing and Research Laboratories for Materials and Structures., National Science Foundation (U.S.), and RILEM International Symposium on Creep and Shrinkage of Concrete--Mathematical Modeling (4th : 1986 : Northwestern University), eds. Mathematical modeling of creep and shrinkage of concrete. Chichester: Wiley, 1988.

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Vladimír, Křístek, ed. Creep and shrinkage of concrete elements and structures. Amsterdam: Elsevier, 1988.

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Institute, American Concrete. Guide for modeling and calculating shrinkage and creep in hardened concrete. Farmington Hills, MI: American Concrete Institute, 2008.

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Adam, Neville Symposium (2000 Atlanta Ga ). The Adam Neville Symposium: Creep and shrinkage : structural design effects. Farmington Hills, Mich: American Concrete Institute, 2000.

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P, Bažant Z., Carol Ignacio, Escola Tècnica Superior d'Enginyers de Camins, Canals, i Ports de Barcelona., and Universidad Politècnica de Catalunya. Centre Internacional de Mètodes Numèrics en Enginyeria., eds. Creep and shrinkage of concrete: Proceedings of the fifth international RILEM symposium, Barcelona, Spain, September 6-9, 1993. London: E & FN Spon, 1993.

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International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures (10th 2015 Vienna, Austria). CONCREEP 10: Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures : Proceedings of the 10th International Conference on Creep, Shrinkage, and Durability of Concrete and Concrete Structures, September 21-23, 2015 Vienna, Austria. Reston, Virginia: American Society of Civil Engineers, 2015.

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Symposium, RILEM International. Creep and shrinkage of concrete: Proceedings of the fifth International RILEM Symposim, Barcelona, Spain, September 6-9, 1993. London: E & FN Spon, 1993.

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C, Fu C., and Daye M. D, eds. Computer analysis of the effects of creep, shrinkage, and temperature changes on concrete structures. Detroit, Mich. (P.O. Box 19150, Redford Station, Detroit 48219): American Concrete Institute, 1991.

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P, Bažant Z., Ulm F. J. (Franz-Josef), Jennings Hamlin, Pellenq Roland, and Engineering Mechanics Institute, eds. Mechanics and physics of creep, shrinkage, and durability of concrete: A tribute to Zdenek P. Bažant : proceedings of the Ninth International Conference on Creep, Shrinkage, and Durability Mechanics (CONCREEP-9), September 22-25, 2013 Cambridge, Massachusetts. Reston, Virginia: American Society of Civil Engineers, 2013.

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Book chapters on the topic "Concrete - Creep and Shrinkage"

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Benboudjema, Farid, Fékri Meftah, Grégory Heinfling, Fabrice Lemaou, and Jean Michel Torrenti. "Delayed Effects - Creep and Shrinkage." In Mechanical Behavior of Concrete, 339–408. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118557587.ch9.

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Chiew, Sing-Ping, and Yan-Qing Cai. "Concrete creep and shrinkage model." In Design of High Strength Steel Reinforced Concrete Columns, 33–45. Boca Raton : CRC Press, [2018]: CRC Press, 2018. http://dx.doi.org/10.1201/9781351203951-4.

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Leemann, Andreas, and Pietro Lura. "Creep and Shrinkage of SCC." In Mechanical Properties of Self-Compacting Concrete, 73–94. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03245-0_3.

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Tan, Donglian, Wenyuan Ding, Yue Zhao, and Chuqin Yan. "Detailed Analysis of Shrinkage and Creep Effect of Concrete in Prestressed Box Girder Bridge." In Lecture Notes in Civil Engineering, 85–99. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2532-2_8.

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AbstractFor a 60 m prestressed concrete box girder bridge using structural analysis software as ANSYS and MIDAS/civil, combined with several creep prediction models, a reasonable creep prediction model has been obtained. Considering the influence of prestressed tendon relaxation on the shrinkage and creep of concrete, a refined finite element model is established for numerical analysis and compared with the experimental data. The comparison results show that the calculated value of the refined finite element model with reasonable prediction models and considering the effect of prestress relaxation is closer to the measured value. Finally, the finite element model of solid elements considering the effect of prestress relaxation with the GL2000 creep prediction model is used to analyze the shrinkage and creep effect of a prestressed concrete continuous rigid frame bridge.
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Bažant, Zdeněk P., and Milan Jirásek. "Basic Properties of Concrete Creep, Shrinkage, and Drying." In Creep and Hygrothermal Effects in Concrete Structures, 29–62. Dordrecht: Springer Netherlands, 2018. http://dx.doi.org/10.1007/978-94-024-1138-6_3.

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Henschen, Jacob, Atsushi Teramoto, and David A. Lange. "Shrinkage and Creep Performance of Recycled Aggregate Concrete." In 7th RILEM International Conference on Cracking in Pavements, 1333–40. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4566-7_127.

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Terry, P. J., M. A. Bradford, and R. I. Gilbert. "Creep and shrinkage in concrete-filled steel tubes." In Tubular Structures VI, 293–98. London: Routledge, 2021. http://dx.doi.org/10.1201/9780203735015-43.

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Bažant, Zdeněk P., and Milan Jirásek. "Temperature Effect on Water Diffusion, Hydration Rate, Creep and Shrinkage." In Creep and Hygrothermal Effects in Concrete Structures, 607–86. Dordrecht: Springer Netherlands, 2018. http://dx.doi.org/10.1007/978-94-024-1138-6_13.

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Brooks, Jeff. "Elasticity, shrinkage, creep and thermal movement." In Advanced Concrete Technology, 1–18. Elsevier, 2003. http://dx.doi.org/10.1016/b978-075065686-3/50254-8.

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Alghazali, Hayder H., and John J. Myers. "Creep and shrinkage of SCC." In Self-Compacting Concrete: Materials, Properties and Applications, 131–46. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-817369-5.00006-4.

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Conference papers on the topic "Concrete - Creep and Shrinkage"

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"Shrinkage Behavior and Residual Stress Development in Mortar Containing Shrinkage Reducing Admixtures (SRAs)." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14435.

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"Shrinkage of Virginia Transportation Concrete Mixtures." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14432.

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"Testing for Concrete Creep and Shrinkage." In SP-194: The Adam Neville Symposium: Creep and Shrinkage-Structural Design Effects. American Concrete Institute, 2000. http://dx.doi.org/10.14359/9900.

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Li, X., and Z. C. Grasley. "Shrinkage and Creep Caused by Dissolution." In 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479346.037.

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Boumakis, I., M. Marcon, Lin Wan, and R. Wendner. "Creep and Shrinkage in Fastening Systems." In 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479346.079.

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"Performance of Self-Consolidating Concrete Under Restrained Shrinkage." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14436.

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"Tension Cracking in Columns Under Compression Loads." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14430.

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"Deviations from the Principle of Superposition and their Consequences on Structural Behavior." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14426.

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"Design Aids for the Evaluation of Creep Induced Structural Effects." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14433.

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"A Rational Approach to the Analysis of Structural Effects due to Creep." In SP-227: Shrinkage and Creep of Concrete. American Concrete Institute, 2005. http://dx.doi.org/10.14359/14428.

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Reports on the topic "Concrete - Creep and Shrinkage"

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Guerrero, H., and M. Restivo. TESTING AND ANALYSIS OF CAP CONCRETE STRESS AND STRAIN DUE TO SHRINKAGE, CREEP, AND EXPANSION FINAL REPORT. Office of Scientific and Technical Information (OSTI), August 2011. http://dx.doi.org/10.2172/1023617.

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Giorla, Alain B. Implementation of Concrete Creep Model in Grizzly. Office of Scientific and Technical Information (OSTI), November 2017. http://dx.doi.org/10.2172/1460224.

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Liu, C. Measure of Creep Characteristics of Asphalt Concrete. Fort Belvoir, VA: Defense Technical Information Center, October 1995. http://dx.doi.org/10.21236/ada302804.

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Snyder, Kenneth A. Effect of drying shrinkage cracks and flexural cracks on concrete bulk permeability. Gaithersburg, MD: National Institute of Standards and Technology, 2000. http://dx.doi.org/10.6028/nist.ir.6519.

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Barinakumar, Aishwarya, Joseph Bracci, Zachary Grasley, Joshua Hogancamp, Lauren Kelly, Benjamin Spencer, and Christa Torrence. EXPERIMENTALLY VALIDATED COMPUTATIONAL MODELING OF CREEP AND CREEP-CRACKING FOR NUCLEAR CONCRETE STRUCTURES. Office of Scientific and Technical Information (OSTI), October 2020. http://dx.doi.org/10.2172/1700505.

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Rahman, Mohammad, Ahmed Ibrahim, and Riyadh Hindi. Bridge Decks: Mitigation of Cracking and Increased Durability—Phase III. Illinois Center for Transportation, December 2020. http://dx.doi.org/10.36501/0197-9191/20-022.

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Early-age cracking in concrete decks significantly reduces the service life of bridges. This report discusses the application of various concrete mixtures that include potential early mitigation ingredients. Large-scale (7 ft × 10 ft) experimental bridge prototypes with similar restraint conditions found in actual bridges were poured with different concrete mixtures to investigate mitigation techniques. Portland cement (control), expansive Type K cement, internally cured lightweight aggregate (LWA), shrinkage-reducing admixture (SRA), and gypsum mineral were investigated as mitigating ingredients. Seven concrete mixtures were prepared by using individual ingredients as well as a combination of different ingredients. The idea behind combining different mitigating techniques was to accumulate the combined benefit from individual mitigating materials. The combined Type K cement and LWA mixture showed higher concrete expansion compared with mixtures containing Portland cement, Type K cement, LWA, and SRA in the large-scale experimental deck. Extra water provided by LWA significantly enhanced the performance of Type K cement’s initial expansion as well as caused larger total shrinkage over the drying period. A combination of Type K cement and gypsum mineral showed insignificantly higher expansion compared with the individual Type K mixture. Overall, the experimental deck containing SRA showed the least total shrinkage compared with other mixtures. Finite-element modeling was performed to evaluate and predict concrete stress-strain behavior due to shrinkage in typical bridges. A parametric study using finite-element analysis was conducted by altering the structure of the experimental deck. More restraint from internal reinforcement, less girder spacing, larger girder flange width, and more restrictive support conditions increased the concrete tensile stress and led to potential cracking in the concrete deck.
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Jennings, Hamlin M. Developing improved relationships between microstructure and creep and shrinkage of cement-based materials. Final report for the period September 9, 1998 - July 31, 2000. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/805791.

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Deb, Robin, Paramita Mondal, and Ardavan Ardeshirilajimi. Bridge Decks: Mitigation of Cracking and Increased Durability—Materials Solution (Phase III). Illinois Center for Transportation, December 2020. http://dx.doi.org/10.36501/0197-9191/20-023.

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Type K cement offers a lower slump than conventional concrete, even at a higher water-to-cement ratio. Therefore, a suitable chemical admixture should be added to the Type K concrete mix design at a feasible dosage to achieve and retain target slump. In this project, a compatibility study was performed for Type K concrete with commercially available water-reducing and air-entraining admixtures. Slump and air content losses were measured over a period of 60 minutes after mixing and a particular mid-range water-reducing admixture was found to retain slump effectively. Furthermore, no significant difference in admixture interaction between conventional and Type K concrete was observed. Another concern regarding the use of Type K concrete is that its higher water-to-cement ratio can potentially lead to higher permeability and durability issues. This study also explored the effectiveness of presoaked lightweight aggregates in providing extra water for Type K hydration without increasing the water-to-cement ratio. Permeability of concrete was measured to validate that the use of presoaked lightweight aggregates can lower water adsorption in Type K concrete, enhancing its durability. Extensive data analysis was performed to link the small-scale material test results with a structural test performed at Saint Louis University. A consistent relation was established in most cases, validating the effectiveness of both testing methods in understanding the performance of proposed shrinkage-mitigation strategies. Stress analysis was performed to rank the mitigation strategies. Type K incorporation is reported to be the most effective method for shrinkage-related crack mitigation among the mixes tested in this study. The second-best choice is the use of Type K in combination with either presoaked lightweight aggregates or shrinkage-reducing admixtures. All mitigation strategies tested in this work were proved to be significantly better than using no mitigation strategy.
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Andrawes, Bassem, Ernesto Perez Claros, and Zige Zhang. Bond Characteristics and Experimental Behavior of Textured Epoxy-coated Rebars Used in Concrete Bridge Decks. Illinois Center for Transportation, January 2022. http://dx.doi.org/10.36501/0197-9191/22-001.

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The deterioration of bridge decks is a problem typically associated with the corrosion of the reinforcing steel. This issue was partially controlled during the 1970s with the incorporation of the epoxy-coating protection system. However, research later demonstrated that the smooth surface resulting from the epoxy-coating application reduces most of the friction between the rebar and the surrounding concrete. Consequently, forces acting on the rib faces are reconfigured in such a way that the radial components increase, triggering the early development of cracks. To mitigate both the reduction of bonding and the formation of cracks, the Illinois Department of Transportation proposed a new type of coated bars: textured epoxy-coated (TEC) bars. Over the last few years, different projects have been executed to understand and improve the characteristics of TEC rebars. This report is a continuation of research performed at the University of Illinois Urbana-Champaign to evaluate the bond behavior of TEC bars. The experimental program starts by characterizing, qualitatively and quantitatively, the roughness of the TEC rebars. Next, their bond-slip interaction embedded in concrete is evaluated through pull-out tests. Finite element models of these tests are developed to validate the behavior observed as the textured reinforcement loses anchorage with concrete. Based on these results, the experimental program then aims to study the impact of the drying shrinkage, temperature change, and flexural demands on two large-scale bridge deck specimens reinforced, individually, with TEC and standard epoxy-coated bars. The results collected from both specimens using digital image correlation and strain gauges are compared to explore the differences exhibited by the traditional and the new type of reinforcement coatings in terms of stress distribution in bridge decks. Finally, given the specialized equipment and time-consuming procedure needed to calculate the roughness parameters of TEC bars, an empirical, weight-based approach is developed as a rapid method for assessing the rebars’ roughness on-site.
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Huang, Cihang, Yen-Fang Su, and Na Lu. Self-Healing Cementitious Composites (SHCC) with Ultrahigh Ductility for Pavement and Bridge Construction. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317403.

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Cracks and their formations in concrete structures have been a common and long-lived problem, mainly due to the intrinsic brittleness of the concrete. Concrete structures, such as rigid pavement and bridge decks, are prone to deformations and deteriorations caused by shrinkage, temperature fluctuation, and traffic load, which can affect their service life. Rehabilitation of concrete structures is expensive and challenging—not only from maintenance viewpoints but also because they cannot be used for services during maintenance. It is critical to significantly improve the ductility of concrete to overcome such issues and to enable better infrastructure quality. To this end, the self-healing cementitious composites (SHCC) investigated in this work could be a promising solution to the aforementioned problems. In this project, the team has designed a series of cementitious composites to investigate their mechanical performances and self-healing abilities. Firstly, various types of fibers were investigated for improving ductility of the designed SHCC. To enhance the self-healing of SHCC, we proposed and examined that the combination of the internal curing method with SHCC mixture design can further improve self-healing performance. Three types of internal curing agents were used on the SHCC mixture design, and their self-healing efficiency was evaluated by multiple destructive and non-destructive tests. Results indicated a significant improvement in the self-healing capacity with the incorporation of internal curing agents such as zeolite and lightweight aggregate. To control the fiber distribution and workability of the SHCC, the mix design was further adjusted by controlling rheology using different types of viscosity modifiers. The team also explored the feasibility of the incorporation of colloidal nano-silica into the mix design of SHCC. Results suggest that optimum amounts of nano-silica have positive influence on self-healing efficiency and mechanical properties of the SHCC. Better hydration was also achieved by adding the nano-silica. The bonding strength of the SHCC with conventional concrete was also improved. At last, a standardized mixing procedure for the large scale SHCC was drafted and proposed.
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