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Journal articles on the topic 'Workability and strength'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ma, Yong Qiang. "Experimental Study on Workability and Strength of Green High Performance Concrete with High Volume Fly Ash." Advanced Materials Research 859 (December 2013): 52–55. http://dx.doi.org/10.4028/www.scientific.net/amr.859.52.

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A great deal of experiments have been carried out in this study to reveal the effect of the water-binder ratio and fly ash content on the workability and strengths of GHPC (green high performance concrete). The workability of GHPC was evaluated by slump and slump flow. The strengths include compressive strength and splitting tensile strength. The results indicate that the increase of water-binder ratio can improve the workability of GHPC, however the strengths of GHPC were decreased with the increase of water-binder ratio. When the fly ash content is lower than 40%, the increase in fly ash con

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2

G, Mr Venkatesan, Poovadharani R, and Neerkamali L. "Experiment Investigation On Concrete With Partial Replacement Of Cement By Cow Dung Ash." Journal of University of Shanghai for Science and Technology 23, no. 10 (2021): 439–46. http://dx.doi.org/10.51201/jusst/21/09698.

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Experimental investigations were carried out to study the cow dung ash on the strength of concrete. Cement was partially replaced with four percentages (5%, 10%, 15%, 20%) of cow dung ash by weight in M20 grade concrete mix. Test performed on the concrete mix are compressive strength, splitting tensile strength and workability. The compressive strengths of the concrete specimens were determined at 7 and 28 days respectively. The tests were performed on the moulds of size (150mm x150mm x150mm).Workability test is done using compaction factor apparatus. Workability Test shows that workability of

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3

Jhatial, Ashfaque Ahmed, Samiullah Sohu, Muhammad Tahir Lakhiar, Jam Shahzaib, and Ahsan Ali Buriro. "Effectiveness of Locally Available Superplasticizers on the Workability and Strength of Concrete." Civil Engineering Journal 4, no. 12 (2018): 2919. http://dx.doi.org/10.28991/cej-03091208.

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Though superplasticizers (SP) are well-known chemical admixtures which are added into concrete to enhance the workability and achieve higher strength while reducing the water content. But the rapid increase in different SP in Pakistan has created confusion on the effectiveness of SP. This experimental study was carried out to study the effect of locally available SP on the workability and compressive strength of M15 grade concrete. Three different SP were utilized, with dosage ranging from 0.5% to 2.5% with an increment of 0.5%. The water-cement ratio remained constant at 0.5 for all samples.

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4

Kwan, A. KH. "Use of condensed silica fume for making high-strength, self-consolidating concrete." Canadian Journal of Civil Engineering 27, no. 4 (2000): 620–27. http://dx.doi.org/10.1139/l99-091.

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A high concrete strength can be achieved by lowering the water/binder ratio and a high workability by adding a higher dosage of superplasticizer. However, a high-performance concrete with both high strength and high workability cannot be produced by just these means because lowering the water/binder ratio leads to lower workability and there is a limit to the increase in workability that can be attained by adding superplasticizer. To produce a high-strength, high-workability concrete, the concrete strength needs to be increased without lowering the water/binder ratio. This can be done by addin

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John, Wasiu, Agbawhe Okeoghene Oghenekume, and Tuleun Lawrence Zahemen. "The Effect of Calcium Carbonate Filler on Self-Compacting Concrete Using Different Aggregate Sizes." European Journal of Engineering Research and Science 4, no. 9 (2019): 9–16. http://dx.doi.org/10.24018/ejers.2019.4.9.1485.

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In this research work, the effect of Calcium Carbonate Filler was studied on the compressive strength and the workability of self-compacting Concrete (SCC) at different grades (M60, M65 and M70) and different coarse aggregate sizes (6.3mm, 10mm and 20mm). Calcium Carbonate Filler (Limestone powder) and Rice Husk Ash (RHA) were added in percentages of 2.5% and 5% to check its effect on the workability and strength properties of SCC and Normally Vibrated Concrete. Experimental investigations were carried out on SCC and normally vibrated concrete (NVC) samples of grade M60, M65 and M70 using diff

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John, Wasiu, Agbawhe Okeoghene Oghenekume, and Tuleun Lawrence Zahemen. "Effect of Calcium Carbonate Filler on Self-Compacting Concrete Using Different Aggregate Sizes." European Journal of Engineering and Technology Research 4, no. 9 (2019): 9–16. http://dx.doi.org/10.24018/ejeng.2019.4.9.1485.

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In this research work, the effect of Calcium Carbonate Filler was studied on the compressive strength and the workability of self-compacting Concrete (SCC) at different grades (M60, M65 and M70) and different coarse aggregate sizes (6.3mm, 10mm and 20mm). Calcium Carbonate Filler (Limestone powder) and Rice Husk Ash (RHA) were added in percentages of 2.5% and 5% to check its effect on the workability and strength properties of SCC and Normally Vibrated Concrete. Experimental investigations were carried out on SCC and normally vibrated concrete (NVC) samples of grade M60, M65 and M70 using diff

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7

Ahmad, Mushtaq, Sana Ullah, Aneel Manan, Temple Chimuanya Odimegeu, and Salmia Beddu. "Compressive Strength by Incorporating Quarry Dust in Self-Compacting Concrete Grade M35." Civil Engineering Journal 4, no. 4 (2018): 776. http://dx.doi.org/10.28991/cej-0309132.

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The study has conducted to determine the workability and compressive strength of the self –compacting concrete. The sand has replaced with quarry dust with the proportion of 10, 20, 30 and 40% and super plasticizer was added 0.9%. The experiments were carried out at the Infrastructure University Kuala Lumpur (IUKL) concrete laboratory. Slump flow, J- Ring tests were carried out to determine the workability of self-compacting concrete and compressive strength test was conducted on 7 days and 28th days of curing period. A finding of the study shows that workability and compressive strength has i

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8

Aris, Rita Hardianti, Erniati Bachtiar, and Ritnawati Makbul. "Workability dan Sifat Mekanik Self Compacting Geopolimer Concrete (SCGC)." Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan 6, no. 2 (2021): 267. http://dx.doi.org/10.30736/cvl.v6i2.718.

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The purpose of this study was to investigate the relationship between molarity and workability in Self-Compacting Geopolymer Concrete (SCGC), as well as mechanical properties. Compressive strength and split tensile strength tests are used to characterize the mechanical characteristics in this research. Additionally, the study investigates the optimal molarity for self-compacting geopolymer concrete. Fly ash was used in lieu of cement in this research. On new concrete self-compacting geopolymer, workability is determined using the EFNARC standard, which includes the Slump Flow, V-Funnel, and L-

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9

Tang, Chun Ping, and Liang Liang Zhang. "Experimental Research on Polymer-Modified Ceramic Tile Bonding Mortar." Advanced Materials Research 243-249 (May 2011): 1711–15. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1711.

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In order to overcome the disadvantages of traditional binding mortar with its workability is poor, bond strength is low, and the bond effects far from satisfactory. In this paper,binding mortar, has been developed by adding polymer into mortar to improving the binding strength and workability. The effects of the polymer type and content on strength of mortar has been studied,The results show that polymer-modified bonding mortar worked better than the traditional mortar: the workability was improved, bonding strength was enhanced.

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10

Waheedh, Shaik, and Dr M. Madhuri. "EFFECT ON PROPERTIES OF CONCRETE BY PARTIAL REPLACEMENT OF CEMENT WITH METAKAOLIN AND SUPERPLASTICIZER." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 07, no. 12 (2023): 1–11. http://dx.doi.org/10.55041/ijsrem27598.

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Metakaolin, a pozzolanic material, has been recognized for its potential to enhance concrete properties, while superplasticizers are commonly used to improve workability and reduce water content in concrete mixtures. The experimental program involves the preparation of concrete mixtures with metakaolin replacements at different levels (by 0%, 5%, 10%, 15%, and 20% by weight of cement). A commercially available superplasticizer is added to the mixtures (by 0%, 0.5%, 1%, 1.5%, and 2% by weight of cement) to optimize workability. The properties of the resulting concrete, including slump cone test

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11

Hussain, Khadim, Faheem Butt, Mamdooh Alwetaishi, et al. "Effect of Quarry Rock Dust as a Binder on the Properties of Fly Ash and Slag-Based Geopolymer Concrete Exposed to Ambient and Elevated Temperatures." Applied Sciences 11, no. 19 (2021): 9192. http://dx.doi.org/10.3390/app11199192.

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This study presents the performance of quarry rock dust (QRD) incorporated fly ash (FA) and slag (SG) based geopolymer concretes (QFS-GPC) exposed to ambient and elevated temperatures. A total of five QFS-GPC mix types were prepared. The quantity of FA (50%) was kept constant in all the mixes, and SG was replaced by 5%, 10%, 15%, and 20% of QRD. The fresh, hardened properties of the QFS-GPC mixes, viz., workability, compressive strength, splitting tensile strength, and flexural strengths, and XRD for identification of reaction phases were evaluated. The prepared mixes were also heated up to 80

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12

Alsadey, Salahaldein, and Abdelnaser Omran. "Effect of Superplasticizers to Enhance the Properties of Concrete." DESIGN, CONSTRUCTION, MAINTENANCE 2 (March 23, 2022): 84–91. http://dx.doi.org/10.37394/232022.2022.2.13.

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This study aimed to study the effects of asuperplasticizing admixture, namely, Sikament-NN superplasticizer, on concrete properties, such as workability and compressive strength. Experiments were performed on different concrete mixes with water–cement ratios of 0.50, 0.55, and 0.60. The superplasticizer dosages by weight of cement were 0%, 0.8%, 1%, and 1.2%. The experiments were classified into two phases: the first phase focused on the effects of superplasticizer admixture on workability and compressive strength, and the second phase determined the influence of superplasticizer admixture on

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13

Zeyad, A. M., Bassam A. Tayeh, Abdalla M. Saba, and M. A. Megat Johari. "Workability, Setting Time and Strength of High-Strength Concrete Containing High Volume of Palm Oil Fuel Ash." Open Civil Engineering Journal 12, no. 1 (2018): 35–46. http://dx.doi.org/10.2174/1874149501812010035.

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Introduction: Palm oil fuel ash in two various forms-ground (GPOFA) by heat-treated carbon-free ultrafine of a median particle size of 2 μm (UPOFA) were utilized to produce high strength concretes (HSC-GPOFA (HSCgx), HSC-UPOFA (HSCux), and HSC-OPC) at different levels ordinary Portland cement (OPC) partial replacements (x) of 20, 40 and 60%. Methods: The workability (slump, slump loss, and compacting factor), initial and final setting times and strength in both forms of concrete were investigated. Results and Conclusion: The results showed that HSCu had improved physical properties and chemica

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14

Kaboré, Mohamed Wendlassida, Youssef El Bitouri, Habiba Lharti, et al. "Insights into the Effect of Recycled Glass Fiber Reinforced Polymer on the Mechanical Strengths of Cement Mortar." Eng 5, no. 4 (2024): 2966–77. http://dx.doi.org/10.3390/eng5040154.

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The incorporation of recycled glass fiber reinforced polymer (rGFRP) in cementitious materials is an interesting recycling and valorization method. However, this incorporation generally results in a significant loss of workability, often compensated by an adjustment of the water to cement ratio, which can affect mechanical performance, particularly compressive strength. The aim of this paper is to examine the effect of different size fractions of rGFRP (0.063 mm, 0.16 mm, 0.63 mm, 1.25 mm and 2 mm) on the mechanical strengths of cement mortars with a mixing method that is likely to maintain th

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15

Rajput, Kiran. "Evaluating the Structural Performance of Concrete Beams Made of Waste Plastic Aggregates." International Journal for Research in Applied Science and Engineering Technology 12, no. 3 (2024): 1748–53. http://dx.doi.org/10.22214/ijraset.2024.59028.

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Abstract: This study investigates the potential of using plastic waste as a partial replacement for aggregates in concrete production, aiming to address the dual challenges of unsustainable construction practices and the global accumulation of plastic waste. With an emphasis on sustainability and waste management, the research explores the effects of incorporating different percentages of plastic waste (0%, 5%, 10%, 15%, and 20%) on the mechanical properties, durability, workability, and thermal behavior of concrete. The methodology encompasses the collection and preparation of plastic waste,

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16

Panhyar, Muhammad Arif, Syed Naveed Raza Shah, Fahad Ali Shaikh, and Ashfaque Ahmed Jhatial. "Influence Of Casting Temperature On The Structural Behavior Of Concrete." Engineering, Technology & Applied Science Research 9, no. 4 (2019): 4480–83. https://doi.org/10.5281/zenodo.3370653.

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Concrete is the most preferred construction and building material and its demand is not expected to diminish in the near future. The properties of concrete are affected by various factors, one of them is the temperature at casting. This experimental work was carried out in order to study the effect of high temperature on workability, and compressive and flexural tensile strength of concrete. It was found that higher temperatures caused water content evaporation from the mix during casting, causing reduction in workability, but simultaneously increased the strength compared to concrete cast at

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17

Ling, Yifeng, Peng Zhang, Juan Wang, Peter Taylor, and Shaowei Hu. "Effects of nanoparticles on engineering performance of cementitious composites reinforced with PVA fibers." Nanotechnology Reviews 9, no. 1 (2020): 504–14. http://dx.doi.org/10.1515/ntrev-2020-0038.

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AbstractIn this study, the influence of nano-CaCO3 (NC) and nano-SiO2 (NS) on engineering properties of cementitious composites reinforced with polyvinyl alcohol (PVA) fibers was investigated including slump and fracture properties as well as compressive, flexural, tensile, and strengths. The influence mechanism of NS content on properties of cementitious composites was revealed. The combined effects of NS and NC were evaluated on the composites made with 0.9% volumetric PVA fiber addition. The experimental results showed that the addition of nanoparticles decreased the workability of fresh ce

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18

McQueen, H. J., and Man Jong Lee. "Hot Workability of High Strength 6060 Alloy." Materials Science Forum 331-337 (May 2000): 437–42. http://dx.doi.org/10.4028/www.scientific.net/msf.331-337.437.

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19

Chan, S. Y. N., N. Q. Feng, and M. K. C. Tsang. "Workability retention of high strength/superplasticized concrete." Magazine of Concrete Research 48, no. 177 (1996): 301–9. http://dx.doi.org/10.1680/macr.1996.48.177.301.

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20

Stone, H. E. N. "Workability, hardness, and strength of aluminium alloys." Materials Science and Technology 11, no. 12 (1995): 1312–14. http://dx.doi.org/10.1179/mst.1995.11.12.1312.

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21

Khulhare, Chandrashekhar, Dr P. K. Singhai, Abhay Kumar Jha, Barun Kumar, and Rajesh Misra. "Influence of Superplasticizers (Conplast Conplast SP 430) on Fresh Properties of Self-Compacting Concrete: An Experimental Investigation." International Journal for Research in Applied Science and Engineering Technology 10, no. 10 (2022): 772–75. http://dx.doi.org/10.22214/ijraset.2022.47088.

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Abstract: Super plasticizer has played a significant part in the recent issues of stability, particle suspension, particle segregation, flow properties, and cohesiveness in concrete. This study looked at how self-compacting concrete's characteristics and workability were affected by super plasticizer (SCC). Super plasticizers Conplast Conplast SP 430 is employed in the current investigation with concrete grades M30 and M40. Fresh concrete was used for the workability slump, compressive strength, and flexural strength test. On the hardened concrete, a test for compressive strength was performed

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22

Jun, Xu, Liu Dan, and Zhan Yijian. "Study on Workability Compensation Laws of Concrete with Different Strength Grades." E3S Web of Conferences 198 (2020): 01006. http://dx.doi.org/10.1051/e3sconf/202019801006.

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This paper, by adopting the reverse mixing compensation technique of the admixtures, deals with the rules of how the secondary compensation mechanism of admixtures affects the recovery of concrete workability under conditions with different strength grades and different mix ratio designs, reveals the mechanism of how to adjust and control the concrete workability, and sets up the workability compensation law equation of C30-C60 concrete mixture based on average fit curve.

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23

Xie, Yong, Chunmeng Jiang, Tianxu Zhang, Peng Liu, and Xinhui Wei. "Analysis of Workability and Mechanical Properties of Alkali-Activated Recycled Aggregate Fiber Concrete." Modern Management Science & Engineering 6, no. 2 (2024): p177. http://dx.doi.org/10.22158/mmse.v6n2p177.

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Alkali-activated recycled aggregate fiber concrete is an innovative material that combines alkali activation technology, recycled aggregates, and fiber reinforcement. This paper systematically analyzes the workability and mechanical properties of this concrete. Experimental studies assessed the workability of alkali-activated recycled aggregate fiber concrete, including its flowability and workability, and explored how these characteristics impact construction and use. Additionally, a detailed analysis of the concrete's mechanical properties, such as compressive strength, tensile strength, and

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24

Cao, W. H., X. F. Wang, D. S. Zhang, et al. "Workability and Compressive Strength Behavior of a Cemented High-Porosity Backfill Material." Advances in Civil Engineering 2021 (September 20, 2021): 1–10. http://dx.doi.org/10.1155/2021/7526616.

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A full understanding of the workability and unconfined compressive strength (UCS) of the cemented high-porosity (CHPB) material, made of surface sand, widely distributed in the western mining area, foam, and cementing materials, is important for applying in ecologically fragile mining areas of western China. In this article, the influence of solid content, density grade, sand/binder ratio, and silica fume dosage in binder on workability and strength development of CHPB samples in different curing ages is studied. Test results show that the fresh CHPB mix has good workability, due to the existe

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25

Siva Prasad, Ragireddy Veera Venkata, Yeswanth Paluri, A. Hemanth, and P. Ganesh. "Strength and durability characteristics of self compacting recycled aggregate concrete incorporating crumb rubber, fly ash and silica fume." Journal of Physics: Conference Series 2779, no. 1 (2024): 012013. http://dx.doi.org/10.1088/1742-6596/2779/1/012013.

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Abstract This study deals with the development of an environmentally sustainable Self-compacting recycled aggregate concrete (SCRAC) incorporating crumb rubber (CR), fly ash (FA) and silica fume (SF). The study gains significance due to increased popularity of environmental-friendly building materials. M50 grade self compacting concrete (SCC) was designed as per EFNARC 2005 specifications and the influence of recycled aggregate (CRA) (as coarse aggregate replacement), CR (as fine aggregate replacement), and FA & SF (as supplementary cementitious materials) on the workability, strength, and

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26

Gailius, Albinas, and Živilė Laurikietytė. "WASTE PAPER SLUDGE ASH AND GROUND GRANULATED BLAST FURNACE SLAG AS BINDER IN CONCRETE." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 9, no. 3 (2003): 198–202. http://dx.doi.org/10.3846/13923730.2003.10531326.

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The aim of the research was to develop an economic binder from waste products that could have applications in the production of concrete. Portland cement (PC) production is a very high-energy intensive process that also involves significant environmental damage with respect to CO2 production and raw material acquisition. This paper investigates workability and strength of concrete made with different proportions of waste paper sludge ash (WSA) and ground granulated blast-furnace slag (GGBS) as binder, at two w/b rations: 0,5 and 0,4. Specimens were tested unconfined compressive strength after

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27

Oseke, I. F., and F. P. Dangiwa. "OPTIMAL CEMENT REPLACEMENT LEVELS IN CONCRETE USING GROUND GRANULATED BLAST FURNACE-SLAG FOR WORKABILITY AND STRENGTH DEVELOPMENT." Open Journal of Engineering Science (ISSN: 2734-2115) 6, no. 1 (2025): 1–14. https://doi.org/10.52417/ojes.v6i1.786.

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Workability and strength development of concrete incorporating Ground Granulated Blast-furnace Slag (GGBS) as partial replacements (10%, 20%, and 30%) for Portland cement (PC) has been investigated. The nature of the components of GGBS has shown a glassy sphere with a composite shell. The form, size, and physical nature of the particles are shown to be the main influences affecting the workability of fresh GGBS concretes and the strength development of the hardened GGBS concrete. The relationship between progressive GGBS particle reaction and strength gain with time has been observed for stand

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28

Suebsuk, Jirayut, and Panupong Panpipat. "Compressive Strength and Workability of Cement Mortar Containing Recycled Asphalt Pavement." Key Engineering Materials 856 (August 2020): 384–90. http://dx.doi.org/10.4028/www.scientific.net/kem.856.384.

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This article presents the compressive strength and workability of cement mortar (CM) containing recycled asphalt pavement (RAP) as fine aggregate replacement. The effect of the RAP replacement, water to cement ratio, curing time, and aggregate water absorption on compressive strength and flow workability are reported. The results show that the mixing water and mixing time play a significant role in the compressive strength and unit weight of CM containing RAP. The RAP has a higher water absorption and slower rate of water absorption than those of sand. The flow workability of CM increases with

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29

Saca, Nastasia, Lidia Radu, Roxana Truşcă, Răzvan Calotă, Daniela Dobre, and Ilinca Năstase. "Assessment of Properties and Microstructure of Concrete with Cotton Textile Waste and Crushed Bricks." Materials 16, no. 20 (2023): 6807. http://dx.doi.org/10.3390/ma16206807.

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Cotton textile waste (CW) and crushed bricks (CB) are wastes generated by the textile and construction industries that cause adverse effects on the environment. This paper explores the effect of adding 1, 2, 5, and 10 wt.% of CW and CB, instead of natural sand under 1 mm (50 to 100 vol.%), on the properties of concrete. The study included the analysis of workability, density, water absorption, thermal conductivity, mechanical strengths, and electron microscopy. The results show that the presence of CW and CB increased the water required to obtain the same slump value as reference, R. Concretes

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Rathish, Kumar. "High performance superplasticized silica fume mortars for ferrocement works." Facta universitatis - series: Architecture and Civil Engineering 8, no. 2 (2010): 129–34. http://dx.doi.org/10.2298/fuace1002129r.

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Ferrocement works demand cement mortars of good workability and high strength. Reduction in water-cement ratio combined with a refined pore structure increases the compressive strength in addition to the enhancement of durability characteristics, but the workability decreases. Workability becomes important, as the mortar has to easily penetrate between the layers of the mesh wires. A reasonably workable high strength cement mortar can be obtained by using a high cement content coupled with the use of superplasticizers. These were also found to retain the cohesiveness and check undesirable blee

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Kushwah, Rupesh, Somaya Gangotiya, and Kishor Patil. "A Review on Engineering Behaviour of Sustainable Concrete with Steel Mill Scale and the Effect of Admixture on Workability Improvement." International Journal for Research in Applied Science and Engineering Technology 12, no. 6 (2024): 859–66. http://dx.doi.org/10.22214/ijraset.2024.63211.

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Abstract: The integration of chemical admixtures and alternative materials in concrete production has become a focal point in advancing construction technologies. This study investigates the combined effects of superplasticizers and mill scale on the workability and compressive strength of M30 grade concrete. Three different superplasticizers—Auramix 200, SikaPlast®-3069 NS, and Master Polyheed 8126—are evaluated for their performance enhancements in concrete. Additionally, mill scale, an industrial by-product, is utilized to partially replace sand in varying proportions (0%, 20%, 40%, 60%, 80

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Kushwah, Rupesh, Somaya Gangotiya, and Kishor Patil. "Engineering Behaviour of Sustainable Concrete with Steel Mill Scale and the Effect of Admixture on Workability Improvement." International Journal for Research in Applied Science and Engineering Technology 12, no. 6 (2024): 853–58. http://dx.doi.org/10.22214/ijraset.2024.63210.

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Abstract: The integration of chemical admixtures and alternative materials in concrete production has become a focal point in advancing construction technologies. This study investigates the combined effects of superplasticizers and mill scale on the workability and compressive strength of M30 grade concrete. Three different superplasticizers—Auramix 200, SikaPlast®-3069 NS, and Master Polyheed 8126—are evaluated for their performance enhancements in concrete. Additionally, mill scale, an industrial by-product, is utilized to partially replace sand in varying proportions (0%, 20%, 40%, 60%, 80

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33

Sai Ketana, Nutakki, V. Srinivasa Reddy, M. V. Seshagiri Rao, and S. Shrihari. "Effect of various parameters on the workability and strength properties of geopolymer concrete." E3S Web of Conferences 309 (2021): 01102. http://dx.doi.org/10.1051/e3sconf/202130901102.

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In the present study, effect of various molarities of NaOH, various fly ash content and alkaline activator solution (AAS) / fly ash(FA) ratios on the workability of geopolymer concrete(GPC) are studied along with the effect of use of Na2SiO3/NaOH and K2SiO3/KOH as alkaline activator solutions and various fly ash contents on the compressive strength of geopolymer concrete mixes. Observations shows that both Na2SiO3/NaOH and K2SiO3/KOH gives better performance for different molar, AAS/FA and oxide ratios. Class C GPC has better performance than Class F GPC. It was found that the increase in mola

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34

Li, Zhengqi. "Predicting the drying shrinkage behavior of high strength portland cement mortar under the combined influence of fine aggregate and steel micro fiber." Materiales de Construcción 67, no. 326 (2017): 119. http://dx.doi.org/10.3989/mc.2017.05916.

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The workability, 28-day compressive strength and free drying shrinkage of a very high strength (121-142 MPa) steel micro fiber reinforced portland cement mortar were studied under a combined influence of fine aggregate content and fiber content. The test results showed that an increase in the fine aggregate content resulted in decreases in the workability, 28-day compressive strength and drying shrinkage of mortar at a fixed fiber content. An increase in the fiber content resulted in decreases in the workability and drying shrinkage of mortar, but an increase in the 28-day compressive strength

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Syed Mohamed, Syarman Khan, and Jacob Lim Lok Guan. "Kesan Sisa Enapcemar Naftalena terhadap Kebolehkerjaan dan Kekuatan Mortar dan Konkrit." Jurnal Kejuruteraan 36, no. 6 (2024): 2345–53. http://dx.doi.org/10.17576/jkukm-2024-36(6)-09.

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The increasing population and modern lifestyle demand have caused the increase in waste sludge production gradually at the same time causing environmental pollution. Thus, the idea of reusing this waste sludge emerges as an alternative way of reusing it to create a product instead of disposing it. The Naphthalene sludge, a by-product obtained from the production of superplasticizer, also known as concrete admixture, is used in this study as an additive in concrete. Concrete was produced with 0%, 1%, 2% and 3% additive of the naphthalene sludge and the workability and strength of mortar and con

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Wang, Qin, Chong Zhi Li, Jun Chao Liu, and Mo Yi Xu. "Study and Application of a Modified Agent GHPC-1 for Green High-Performance Concrete." Advanced Materials Research 535-537 (June 2012): 1955–60. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1955.

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A modified agent GHPC-1 for green high-performance concrete was composed of the strength-increasing groups of organic alcohol amine, the slump-retaining groups of carboxylate polymer and the workability-stabilizing groups of amide. It could be used through substituting some of polycarboxylate water-reducers or combining with polycarboxylate water-reducers to modify the workability of fresh concrete and to increase the strength of hardened concrete. The adaptability tests of cementing materials with admixtures show that the dispersing ability was almost not influenced but the retaining ability

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Raheem, Akeem Ayinde, Samuel Ayooluwa Otolorin, and Samad Olaide Adebiyi. "Influence of Sodium Silicate on the Properties of Wood Ash Blended Cement Concrete." Journal of Engineering Research and Reports 27, no. 1 (2025): 76–91. https://doi.org/10.9734/jerr/2025/v27i11369.

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This study explores the impact of sodium silicate on wood ash blended cement concrete, which contributes significantly to CO2 emissions. This research holds great potential for the construction industry by aiding in the reduction of greenhouse gas emissions, conserving natural resources, and promoting waste minimization. The specific research objectives are Characterizing sand, granite, and wood ash, Producing concrete mixes with wood ash and sodium silicate (Na2SiO3) replacements of 0.5%, 1.0%, 1.5%, and 2.0%, and determine their compressive strength, workability, density, and water absorptio

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Zhang, Yi, Bin Liu, Zhen Fang Li, Bo Liu, Yan Qiu Zhang, and Bin Chen. "Effects of Water Cement Ratio on Workability and the Uniaxial Compressive Strength of Zhong Guan Iron Ore’s Filling Body." Applied Mechanics and Materials 744-746 (March 2015): 712–18. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.712.

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To design a reasonable packing material, solve the problem of solid pollution brought by the iron ore mining, alleviate a lot of backfilling affect national economic development and the current situation of environmental governance. Backfilling materials in this paper, we study the different water-cement ratio pack slump and uniaxial compressive strength and discusses the workability of water-cement ratio on filling body and the influence of uniaxial compressive strength. The experimental results show that with the increase of water cement ratio, the filling body's workability is better and un

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Vasudha, Dattani. "Strength Development of High Strength Concrete using Rice Husk Ash." Journal of Advances in Civil Engineering and Management 6, no. 1 (2023): 10–13. https://doi.org/10.5281/zenodo.7663976.

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<em>With a high water to cement ratio and poor workability, traditional concrete is one type of uneconomical concrete that is challenging to install and prone to issues like honeycomb and bleeding. Concretes with great workability and durability, including self-compacting concrete (SCC), have recently been created and used to address these issues. Self-Compacting Concrete (SCC) is a unique variety of concrete that has excellent self-compacting abilities and can fill formwork and spaces between reinforcing bars with its own weight without the need of vibrating compaction. To create self-compact

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Darvishvand, Hamid Reza, Seiyed Ali Haj Seiyed Taghia, and Masood Ebrahimi. "Study the Impacts of Aggregate’s Geometry and Cement Contents on Fresh and Hardened Properties of Concrete." Applied Mechanics and Materials 907 (June 22, 2022): 27–44. http://dx.doi.org/10.4028/p-06awhu.

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The effects of gravel’s geometry and cement content are one of the most important parameters in the construction industry. Two types of aggregates, sharp corners and rounded corners with different sizes, and several samples of various cement contents were prepared. Then the workability, strength, and elastic modulus tests were performed. Experimental results indicate that workability and compressive strength increase with increasing cement content as expected (12% and 22% for workability and 64% and 69% for compressive strength with regard to sharp and rounded aggregate, respectively). Also, i

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Yu, Chun Hui, Gu Hua Li, Jin Liang Gao, Qun Wei, and Da Zhen Xu. "Research of Performance of Low Amount of Cement Manufactured-Sand Concrete." Applied Mechanics and Materials 357-360 (August 2013): 1200–1205. http://dx.doi.org/10.4028/www.scientific.net/amm.357-360.1200.

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Compared with natural sand, manufactured-sand is of small porosity, poor grain shape and graded, which impacts mixes workability and the properties after hardening. In Concrete, playing the role of retaining moisture water is mainly powder, including cement, powder in the sand and fly ash etc. The amount of powder has a great influence on the properties of concrete, especially on its workability. This paper mainly discusses the influence of amount of cement, cementitious materials, fly ash, water-cement ratio and other factors on the workability, compressive strength and shrinkage of concrete.

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Hasan, Tawsif Mohammad, Levi Gilbert, Srinivas Allena, Josiah Owusu-Danquah, and Anthony Torres. "Development of Non-Proprietary Ultra-High Performance Concrete Mixtures." Buildings 12, no. 11 (2022): 1865. http://dx.doi.org/10.3390/buildings12111865.

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The development of non-proprietary Ultra-High Performance Concrete (UHPC) is one way to reduce the initial cost of construction. However, workability is a major issue for which such mixtures are not practical in field conditions. Ultra-high performance cannot be achieved in field conditions if the concrete is not placed, finished, and compacted properly during placement. In this research, six UHPC mixtures were developed (three with steel fibers and three without fibers) using materials which are readily available on the local marketplace with water-to-cementitious materials ratios ranging bet

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Turi Gerin, Mayara, Almir Sales, and Silvana De Nardin. "MECHANICAL AND PHYSICAL PROPERTIES OF RECYCLED AGGREGATES CONCRETE." Revista Tecnológica 29, no. 1 (2020): 259–74. http://dx.doi.org/10.4025/revtecnol.v29i1.51289.

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Aggregate type - natural or recycled - governs a range of concrete properties (e.g. water absorption and workability). Knowing this, there are many recommended mixing methods for maintaining concrete workability. However, they may be not economic feasible or they may depreciate mechanical properties. In this work, four concrete mixtures were produced replacing 0, 30, 50 and 100% of natural aggregates by recycled concrete aggregates without any pre-wetting method or additional water. Instead of, the “Two-Stage Mixing Approach” mixing method was used. From the experimental tests it was possible

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Kumar, G. V. Preetham, and Chakkingal Uday. "Workability Limits of Commercial Purity Titanium Subjected to Equal Channel Angular Pressing." Materials Science Forum 584-586 (June 2008): 275–80. http://dx.doi.org/10.4028/www.scientific.net/msf.584-586.275.

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Commercial purity Ti is an important candidate material for orthopedic and dental implants because of its high specific strength, good corrosion resistance and excellent biocompatibility. However, for biomedical applications as a replacement for Ti-6Al-4V alloy that is currently used, improvement in strength of CP Ti is necessary. This can be achieved by using severe plastic deformation (SPD) processes like equal channel angular pressing (ECAP) at warm working temperatures followed by conventional processing at room temperatures. This requires adequate workability after ECAP. In this study, th

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Özcan, Fatih, and Halil Kaymak. "Utilization of Metakaolin and Calcite: Working Reversely in Workability Aspect—As Mineral Admixture in Self-Compacting Concrete." Advances in Civil Engineering 2018 (August 29, 2018): 1–12. http://dx.doi.org/10.1155/2018/4072838.

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In this work, utilization of metakaolin (MK) and calcite (C), working reversely in workability aspect, as mineral admixture in self-compacting concrete (SCC), was investigated. MK and C replaced cement in mass basis at various replacement ratios, separately and together. In total, 19 different SCCs were produced. Binder content and water to binder ratio were selected as 500 kg/m3 and 0.4, respectively. Workability tests including slump flow, T50, L-box, and V-funnel tests were performed. Consistency and setting times of binder paste were measured. While replacement of MK with cement increased

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Abbasi, Muhammad Farhan, Sarfaraz Ahmed Palari, and Fahad Ali Shaikh. "Effects of coconut fibers on flexural and tensile strengths of concrete maintaining uniform workability." Mehran University Research Journal of Engineering and Technology 43, no. 4 (2024): 82. http://dx.doi.org/10.22581/muet1982.3042.

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Concrete, the most commonly utilized building material, possesses a high compressive strength but has very low tensile and flexural strength. Steel is the most popular type of flexural and tensile strength enhancer in Cement concrete, however due to the rapid increase in the cost of steel as a result of the financial crises experienced in several countries, research is currently being done to use other affordable and easily accessible material to decrease the quantity of reinforcement steel, as Tensile as well as flexural reinforcement. Coconut fiber, also known as coir fiber, Due to its threa

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Taweel, Awzal, and Raza Masoom. "To Study the Behavior of Fresh and Hardened Concrete by Using Waste Rubber as Partial Replacement of Coarse Aggregates." International Journal of Trend in Scientific Research and Development 1, no. 5 (2017): 1010–19. https://doi.org/10.31142/ijtsrd2411.

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This report presents a study on the effect of partial replacement of coarse aggregates by rubber tyre aggregates on the property of concrete. Utilizing the waste rubber tyers in the form of aggregates as reinforcement in the concrete solve the problem of disposing the waste and increase the flexural strength of concrete. Different tests were conducted on the concrete with varying percentage of rubber tyre aggregates and comparing those results with normal concrete. Data presented includes workability, compressive strength, split tensile strength, flexure tensile strength and flexibility. This

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Rudani, Raj Ravilal, Omkar Sandip Ambekar, and Darsh Girish Kacha. "Experimental Study of Concrete Using Natural Coconut Fiber." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem44408.

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This study provides an experimental investigation of the performance of concrete reinforced using natural coconut fiber with a view to improving its mechanical strengths and sustainability factors. Coconut fiber, a by- product of agriculture, is cheap, eco-friendly, and has good tensile strength, which makes it a good concrete-reinforcing additive. The research examines the influence of adding different proportions of coconut fiber (0%, 1%, 1.5%, and 2%) on the workability, compressive strength, split tensile strength, and flexural strength of concrete. The concrete samples were cast and then

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Sri Ravindrarajah, R. "Casting delay om workability and strength of concrete." International Journal of Cement Composites and Lightweight Concrete 7, no. 2 (1985): 109–13. http://dx.doi.org/10.1016/0262-5075(85)90066-1.

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Ueki Peres, Cindy Yuri, Antonio Hortêncio Munhoz, L. F. Miranda, et al. "Concrete with Addition of Hollow Glass Microspheres." Materials Science Forum 820 (June 2015): 509–14. http://dx.doi.org/10.4028/www.scientific.net/msf.820.509.

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The addition of hollow glass spheres is interesting to reduce the thermal conductivity of the concrete pieces. This work aims to evaluate the concrete with addition of hollow glass microsphere with different combinations of dosage in concrete concerning strength and workability. Slump tests were performed in each dosage of concrete in order to evaluate the effect of glass microspheres in concrete mix. In each age of curing concrete, bodies-specimens underwent ultrasound to estimate the homogeneity of concrete with hollow glass microspheres, and testing of compressive strength. The analysis of

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