Academic literature on the topic 'Cement composite'

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Journal articles on the topic "Cement composite"

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Cui, Xu, Chengcheng Huang, Meng Zhang, Changshun Ruan, Songlin Peng, Li Li, Wenlong Liu, et al. "Enhanced osteointegration of poly(methylmethacrylate) bone cements by incorporating strontium-containing borate bioactive glass." Journal of The Royal Society Interface 14, no. 131 (June 2017): 20161057. http://dx.doi.org/10.1098/rsif.2016.1057.

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Although poly(methylmethacrylate) (PMMA) cements are widely used in orthopaedics, they have numerous drawbacks. This study aimed to improve their bioactivity and osseointegration by incorporating strontium-containing borate bioactive glass (SrBG) as the reinforcement phase and bioactive filler of PMMA cement. The prepared SrBG/PMMA composite cements showed significantly decreased polymerization temperature when compared with PMMA and retained properties of appropriate setting time and high mechanical strength. The bioactivity of SrBG/PMMA composite cements was confirmed in vitro , evidenced by ion release (Ca, P, B and Sr) from SrBG particles. The cellular responses of MC3T3-E1 cells in vitro demonstrated that SrBG incorporation could promote adhesion, migration, proliferation and collagen secretion of cells. Furthermore, our in vivo investigation revealed that SrBG/PMMA composite cements presented better osseointegration than PMMA bone cement. SrBG in the composite cement could stimulate new-bone formation around the interface between the composite cement and host bone at eight and 12 weeks post-implantation, whereas PMMA bone cement only stimulated development of an intervening connective tissue layer. Consequently, the SrBG/PMMA composite cement may be a better alternative to PMMA cement in clinical applications and has promising orthopaedic applications by minimal invasive surgery.
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Čáchová, Monika, Eva Vejmelková, Kateřina Šestáková, Pavel Reiterman, Martin Keppert, Dana Koňáková, and Robert Černý. "Basic Physical and Mechanical Properties of Composites Based on Three Different Cements." Key Engineering Materials 677 (January 2016): 186–90. http://dx.doi.org/10.4028/www.scientific.net/kem.677.186.

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This article is focused on cement based composites. Two cements differing in mineralogical composition are utilised as main binder in composites mixtures. Results of measured physical parameters of studied materials are presented. For the sake of comparison, a reference material with Portland cement was also prepared. Basic physical properties (measured by water vacuum saturation method and by helium pycnometry), characterizations of pore system (determined by mercury porosimetry) and mechanical properties are the matter of this study. Composites show various open porosity; the results of open porosity of materials containing special cements show higher values, in comparison with composite based on Portland cement. This fact of course influences other material characteristics - mainly mechanical properties.
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Hancharoen, Kanokon, Parames Kamhangrittirong, and Pimsiree Suwanna. "Enhancement of Thermal and Sound Insulation Properties of Cement Composite Roofing Tile by Addition of Nanocellulose Coated Pineapple Fiber and Modified Rubber Tire Waste." Key Engineering Materials 861 (September 2020): 465–72. http://dx.doi.org/10.4028/www.scientific.net/kem.861.465.

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In this work, the enhancement of thermal and sound insulation properties of cement composite roofing tile with nanocellulose coated pineapple fiber and modified waste tire rubber is studied. The composite was composed of bacterial nanocellose (BNC) coated pineapple fibers, modified rubber particles, platicizer and type I Portland cement in the weight ratio of 10:50:0.8:100 with the water to cement ratio (w/c) of 0.5. The thermal conducitity of the fiber rubber cement composite could be reduced to 0.1080 ± 0.0048 W/m.K as opposed to 0.3810 ± 0.0041 and 0.5860 ± 0.0050 W/m.K for the fiber cement and the rubber cement composites, respectively. Moreover, the noise reduction coefficient of the fiber rubber cement composite could be increased to 0.2832 as opposed to 0.2143 and 0.1899 for the fiber cement and the rubber cement composites, respectively. These results revealed that adding nanocellulose coated pineapple fiber and modified rubber particles together to the cement composite can enhance the thermal insulation and sound absorption abilities of the composite roof tile significantly better than adding each constituent separately.
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Cheng, Qiangqiang, Jixiong Zhang, Nan Zhou, Yu Guo, and Shining Pan. "Experimental Study on Unconfined Compression Strength of Polypropylene Fiber Reinforced Composite Cemented Clay." Crystals 10, no. 4 (March 26, 2020): 247. http://dx.doi.org/10.3390/cryst10040247.

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The effects of three main factors, including polypropylene fiber content, composite cement content and curing time on the unconfined compressive strength of fiber-reinforced cemented clay were studied through a series of unconfined compressive strength tests. The experimental results show that the incorporation of fibers can increase the compressive strength and residual strength of cement-reinforced clay as well as the corresponding axial strain when the stress peak is reached compared with cement-reinforced clay. The compressive strength of fiber-reinforced cement clay decreases first, then increases with small-composite cement at curing time 14 d and 28 d. However, fiber-reinforced cement clay’s strength increases with the increase of fiber content for heavy-composite cement. The compressive strength of fiber-composite cement-reinforced marine clay increases with the increase of curing time and composite cement content. The growth rate increases with the increase of curing time. The failure mode of composite cement-reinforced clay is brittle failure, while the failure mode of fiber-reinforced cemented clay is plastic failure.
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Ni, Zhuo, Xue Xiao Du, Shuai Wang, Feng Xing, and Zhan Huang. "Effect of UF/Epoxy Microcapsules on Cement Composite." Advanced Materials Research 443-444 (January 2012): 700–704. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.700.

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Effect of microcapsules on cement composites has been studied. The hydration of cement composite using microcapsules is studied by XRD and thermal techniques, showing that the addition of microcapsules has little affect on the hydration of cement. The pore size distribution and surface area of the cement composite with microcapsule are analyzed, showing a reduction in the pore content of cement composite and makes the pores smaller, which would improve durability and impermeability for designed materials. Damaging on cement and composites containing microcapsules and self-healing of these damagings can be reflected by the changes in their bending strength. When the cracks were generated in the composite, the microcapsules can release adhesive to fill in the space between the crackings, preventing cracking further growth.
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Aghyarian, Shant, Lucas C. Rodriguez, Jonathan Chari, Elizabeth Bentley, Victor Kosmopoulos, Isador H. Lieberman, and Danieli C. Rodrigues. "Characterization of a new composite PMMA-HA/Brushite bone cement for spinal augmentation." Journal of Biomaterials Applications 29, no. 5 (August 1, 2014): 688–98. http://dx.doi.org/10.1177/0885328214544770.

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Calcium phosphate fillers have been shown to increase cement osteoconductivity, but have caused drawbacks in cement properties. Hydroxyapatite and Brushite were introduced in an acrylic two-solution cement at varying concentrations. Novel composite bone cements were developed and characterized using rheology, injectability, and mechanical tests. It was hypothesized that the ample swelling time allowed by the premixed two-solution cement would enable thorough dispersion of the additives in the solutions, resulting in no detrimental effects after polymerization. The addition of Hydroxyapatite and Brushite both caused an increase in cement viscosity; however, these cements exhibited high shear-thinning, which facilitated injection. In gel point studies, the composite cements showed no detectable change in gel point time compared to an all-acrylic control cement. Hydroxyapatite and Brushite composite cements were observed to have high mechanical strengths even at high loads of calcium phosphate fillers. These cements showed an average compressive strength of 85 MPa and flexural strength of 65 MPa. A calcium phosphate-containing cement exhibiting a combination of high viscosity, pseudoplasticity and high mechanical strength can provide the essential bioactivity factor for osseointegration without sacrificing load-bearing capability.
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Szczesio-Wlodarczyk, Agata, Karolina Rams, Karolina Kopacz, Jerzy Sokolowski, and Kinga Bociong. "The Influence of Aging in Solvents on Dental Cements Hardness and Diametral Tensile Strength." Materials 12, no. 15 (August 2, 2019): 2464. http://dx.doi.org/10.3390/ma12152464.

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Prosthetic materials must exhibit adequate resistance to the oral environment. The aim of this paper was to study the resistance of selected cements used for cementing restorations (Breeze—composite, Adhesor Carbofine—zinc-polycarboxylate and IHDENT–Giz type II—glass-ionomer) against ethanol, soda and green tea solutions. The highest values of hardness and DTS (diametral tensile strength) were obtained by composite cement (HV = 15–31, DTS = 34–45 MPa). Ethanol solution had the greatest impact on the hardness value of composite cement, and soda solution on zinc-polycarboxylate cement. No significant differences were noted in the DTS values of composite cements after immersion in solvents; however, the DTS value of zinc-polycarboxylate cement increased after prolonged immersion time in ethanol and the DTS of glass-ionomer cement (IHDENT Giz type II) clearly decreased after submersion in soda solutions. Variation in pH across the range of 6 (tea) to 9 (soda solution) had a low impact on the properties of dental cements. Extended exposure to solvents appears to worsen the properties of cements.
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Kumar, Rajneesh, Nisha Garg, Poonam Bogra, Vineeta Nikhil, Amit Garg, and Anamika Thakur. "The Effect of Different Post Materials and Cements on Fracture Resistance of Endodontically Treated Teeth–An in Vitro Study." Dental Journal of Advance Studies 04, no. 01 (April 2016): 038–43. http://dx.doi.org/10.1055/s-0038-1672043.

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Abstract Objective: To evaluate the effect of various post materials and cements on fracture resistance of endodontically treated teeth. Material and methods: Three post systems; custom made Ni-Cr post and core, prefabricated stainless steel and carbon fibre post with composite core and two different luting cements i.e glass ionomer and resin cements were used. Results and conclusions: Carbon fibre post cemented with resin cements showed higher failure load than Ni-Cr and stainless steel post and resin cement performed better than glass ionomer cement, the mode of fracture was more favourable with carbon fibre post than in metallic post.
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Lassila, Lippo, Anna-Maria Le Bell-Rönnlöf, Milla Lahdenperä, and Pekka Vallittu. "Bond Strength of Composite Resin Luting Cements to Fiber-reinforced Composite Root Canal Post." Journal of Contemporary Dental Practice 8, no. 6 (2007): 17–24. http://dx.doi.org/10.5005/jcdp-8-6-17.

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Abstract Aims The aim of this study was to compare the attachment of different composite resin luting cements to a fiber-reinforced composite (FRC) post with a semi-interpenetrating polymer network polymer matrix. Methods and Materials Six different brands of composite resin luting cement stubs were applied on the surface of FRC post material and light-cured for 40 seconds. Shear bond strengths of luting cement stubs were measured using a universal testing machine. Results The differences in shear bond strengths between the cements were not statistically significant. Conclusion All of the tested composite resin luting cements provided acceptable attachment to the tested FRC post. The tested FRC post material is suitable to use with different composite resin luting cements. Citation Le Bell-Rönnlöf AM, Lahdenperä M, Lassila L, Vallittu P. Bond Strength of Composite Resin Luting Cements to Fiber-reinforced Composite Root Canal Post. J Contemp Dent Pract 2007 September; (8)6:017-024.
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Liu, Xing, Can Cheng, Xu Peng, Hong Xiao, Chengrui Guo, Xu Wang, Li Li, and Xixun Yu. "A promising material for bone repair: PMMA bone cement modified by dopamine-coated strontium-doped calcium polyphosphate particles." Royal Society Open Science 6, no. 10 (October 2019): 191028. http://dx.doi.org/10.1098/rsos.191028.

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Polymethyl methacrylate (PMMA) bone cement has been widely used in clinics as bone repair materials for its excellent mechanical properties and good injection properties. However, it also has defects such as poor biological performance, high temperature, and the monomer has certain toxicity. Our study tried to modify the PMMA bone cement by doping with various particle weight fractions (5, 10 and 15%) of SCPP particles and polydopamine-coated SCPP particles (D/SCPP) to overcome its clinical application disadvantages. Our study showed that all results of physical properties of samples are in accordance with ISO 5833. The 15% D/SCPP/PMMA composite bone cement had much better biocompatibility compared with pure PMMA bone cement and SCPP/PMMA composite bone cement due to the best cell growth-promoting mineralization deposition on the surface of 15% D/SCPP/PMMA composite bone cements and Sr 2+ released from SCPP particles. Our research also revealed that the reaction temperature was found to be reduced with an increase in doped particles after incorporating the particles into composite bone cements. The novel PMMA bone cements modified by D/SCPP particles are promising materials for bone repair.
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Dissertations / Theses on the topic "Cement composite"

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Cheung, Yin Nee. "Investigation of concrete components with a pseudo-ductile layer /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20CHEUNGY.

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Gouru, Harinath. "Laboratory evaluation of asphalt-portland cement concrete composite." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12232009-020518/.

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Peled, Alva. "Cement Penetrability Characteristics in Textile Cement Systems." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1244044138771-75495.

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Cement penetrability is a key factor in multifilament cement composites. However, the modes of action and the concepts vary because of brittle and ductile fibers. In the case of brittle fibers such as glass, high penetrability of cement products in between the bundle filaments can lead to brittle composite behavior, and therefore addition in ductility is required. In order to have efficient bundle action and high bonding, fillers can be introduced in between the glass filaments, keeping the telescopic mode of failure but at the same time improving the bond and stress transfer within the filaments of the bundle, even at late ages, resulting in a ductile and high strength composite. On the other hand, ductile fibers such as polypropylene (PP), which also developing low bonding with the cement matrix, result in ductile cement composite but with relatively low strength. Therefore, in this case good penetrability of the cement in between the filaments of the bundle is essential in order to maximize the reinforcing efficiency of the bundle by improving bond. The penetrability of the matrix into a fabric structure and especially in between the bundle filaments made up the fabric is a result of fiber- matrix compatibility, which depends on: level of opening and spaces between the filaments, bundle surface properties including wetting and chemical affinity to the cement matrix, matrix viscosity, processing of the composite, and the nature of the fabric junctions and the resulting tightening effects of the bundle, i.e., influenced by the fabric structure itself.
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Mohr, Benjamin J. "Durability of Pulp Fiber-Cement Composites." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7222.

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Wood pulp fibers are a unique reinforcing material as they are non-hazardous, renewable, and readily available at relatively low cost compared to other commercially available fibers. Today, pulp fiber-cement composites can be found in products such as extruded non-pressure pipes and non-structural building materials, mainly thin-sheet products. Although natural fibers have been used historically to reinforce various building materials, little scientific effort has been devoted to the examination of natural fibers to reinforce engineering materials until recently. The need for this type of fundamental research has been emphasized by widespread awareness of moisture-related failures of some engineered materials; these failures have led to the filing of national- and state-level class action lawsuits against several manufacturers. Thus, if pulp fiber-cement composites are to be used for exterior structural applications, the effects of cyclical wet/dry (rain/heat) exposure on performance must be known. Pulp fiber-cement composites have been tested in flexure to examine the progression of strength and toughness degradation. Based on scanning electron microscopy (SEM), environmental scanning electron microscopy (ESEM), energy dispersive spectroscopy (EDS), a three-part model describing the mechanisms of progressive degradation has been proposed: (1) initial fiber-cement/fiber interlayer debonding, (2) reprecipitation of crystalline and amorphous ettringite within the void space at the former fiber-cement interface, and (3) fiber embrittlement due to reprecipitation of calcium hydroxide filling the spaces within the fiber cell wall structure. Finally, as a means to mitigate kraft pulp fiber-cement composite degradation, the effects of partial portland cement replacement with various supplementary cementitious materials (SCMs) has been investigated for their effect on mitigating kraft pulp fiber-cement composite mechanical property degradation (i.e., strength and toughness losses) during wet/dry cycling. SCMs have been found to be effective in mitigating composite degradation through several processes, including a reduction in the calcium hydroxide content, stabilization of monosulfate by maintaining pore solution pH, and a decrease in ettringite reprecipitation accomplished by increased binding of aluminum in calcium aluminate phases and calcium in the calcium silicate hydrate (C-S-H) phase.
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El-Ashkar, Nabil H. "Wood pulp microfibers in cement-based composites : improving fiber distribution and characterizing composite behavior." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/21518.

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Xie, Ping. "Interface characterization and modelling of cement composite systems." Thesis, University of Ottawa (Canada), 1992. http://hdl.handle.net/10393/7672.

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A detailed review of cement paste-aggregate interface phenomena in concrete is presented as a precursor to identification of the specific problems addressed in the current interface investigation. The principal deficiencies with current interface investigations described in the literature are as follows: (i) a lack of effective and simple investigative methods to quantitatively characterize interfacial microstructure; (ii) no simple and effective method of interfacial modification. A systematic electrical conductivity theory for the interface characterization of cement composites is proposed in this study. Based on the proposed theory, a novel investigative tool, the electrical conductivity method, has been developed. The proposed theory indicates that the characteristics of interfacial microstructure and interfacial zone formation and development can be described uniquely by a parameter, referred to as the "$\theta$-parameter" or "interfacial excess conductance". The developed method was successfully applied to practical cement paste-aggregate systems. Several new findings pertaining to the nature of the aggregate-cement paste interface were obtained. Extensive experimentation indicates that the $\theta$-parameter is a powerful interfacial microstructural descriptor. It is also a useful parameter for characterizing chemical processes at interfaces in cement-aggregate systems. A hypothesis for interfacial microstructure formation is proposed in concert with observed features of the $\theta$-parameter. Electrical conductivity models of both the interfacial zone and the bulk paste are developed to formulate the hypothesis. The hypothesis stresses the significance of the water film on aggregates at mixing for the interfacial microstructure formation. A relationship between interfacial bond strength and interfacial microstructure is developed. It was deduced that reducing the thickness of the water film and using low w/c ratio are two possible methods of enhancing interfacial bond strength. A method of enhancing interfacial microstructure, i.e. coating aggregate surfaces with silica fume, was developed. The experiments indicated that the interfacial microstructure can be effectively densified by aggregate surface treatment. The consequence of interfacial densification is that compressive strength and sulphate resistance of mortar are increased; bending strength is however increased only at later hydration times. A new tool, an a.c. impedance spectroscopy technique, has been utilized recently to study hydrating cement systems. Its further application was however limited due to lack of a fundamental explanation of the a.c. impedance behavior of the hydrating cement systems. A theoretical model for a.c. impedance spectroscopy of hydrating cement systems was developed. A fundamental understanding of the a.c. impedance behavior of hydrating cement systems has been obtained through application of the proposed model, and the validity of the a.c. impedance technique in investigating hydrating cement systems has, therefore, been strongly enhanced. The established link between interface phenomena and ingress of sulphate ions into cement mortar prompted a re-examination of durability related to sulphate expansion. Sulphate expansion is an important research topic dealing with durability of concrete. The mechanism of sulphate expansion, however, remains controversial. A thermodynamic theory of sulphate expansion is proposed after a careful analysis of the physico-chemical processes concerning the sulphate expansion. The theory is validated by extensive experiments. It appears that most sulphate expansion phenomena in the previous work can be explained by the proposed theory.
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Treiber, Martin Paul. "Characterization of cement-based multiphase materials using ultrasonic wave attenuation." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26588.

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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Jacobs, Laurence J.; Committee Member: Kim, Jin-Yeon; Committee Member: Qu, Jianmin. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Escalante-Garcia, Jose Ivan. "The effect of temperature on the hydration of portland cement and composite cement pastes." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242215.

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McMahon, P. H. "The mechanical properties of cement stabilized minestone." Thesis, University of Sunderland, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378952.

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Peng, Joe Zhou. "Modelling of the cellulose and cement mineral bond and the mechanism of aluminous compounds in retarding cement carbonation." Thesis, View thesis, 2001. http://handle.uws.edu.au:8081/1959.7/26659.

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Analysis of calcium and oxygen atom arrays of known cement minerals and the structures of cellulose polymorphs were performed to see if it was possible to arrange a cellulose fibre on a cement mineral face such that the fibre is bonded by a repeating array of hydrogen or hydroxide coordination bonds for the full length of the attachment. Of the sixteen important cement minerals modelled, xonotlite, foshagite, tricalcium aluminate hydrate, chondronite and rosenhahnite could form such bonds to modified cellulose fibre. However, this was not the case for other cement minerals, especially tobermorite. Alumium hydroxide, when added to cement-quartz pastes and autoclaved at 180 degrees C, was found to improve the cement's ability to resist carbonation.
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Books on the topic "Cement composite"

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Brandt, A. M. Cement-based composites: Materials, mechanical properties and performance. London: Spon, 1995.

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Wilson, Sidney John. Surface characteristics of hydroxyapatite/bone cement composite materials. Birmingham: University of Birmingham, 1998.

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Consiglio nazionale delle ricerche (Italy). Progetto finalizzato edilizia., ed. Composite materials in building: State of the art, research and prospects : atti del Simposio preliminare internazionale : area della ricerca del CNR, Milano, 28-29-39 maggio 1990. San Giuliano Milanese: Sottoprogetto 3 "Qualità e innovazione tecnologica", Progetto finalizzato edilizia, 1990.

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O, Buyukozturk, and Wecharatana Methi, eds. Interface fracture and bond. Detroit, Mich: American Concrete Institute, 1995.

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Cement-based composites: materials, mechanical properties and performance. London: Spon, 1995.

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Ghafoori, N. Non-cement compacted composite utilizing coal-based industrial wastes. S.l: s.n, 1994.

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Sidney, Mindess, ed. Fibre reinforced cementitious composites. London: Elsevier Applied Science, 1990.

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Service, Canadian Forestry. Market study for cement/gypsum bonded particleboard: Final report. [Edmonton, Alta.]: Joint publication of the Canadian Forestry Service and the Alberta Forest Service, 1988.

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Cement based composites: Materials, mechanical properties, and performance. 2nd ed. London: Taylor & Francis, 2008.

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1935-, Moslemi A. A., and International Inorganic-Bonded Wood and Fiber Composite Materials Conference (5th : 1996), eds. Inorganic-bonded wood and fiber composite materials. Madison, Wis: Forest Products Society, 1997.

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Book chapters on the topic "Cement composite"

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Cwirzen, A., K. Habermehl-Cwirzen, L. I. Nasibulina, S. D. Shandakov, A. G. Nasibulin, E. I. Kauppinen, P. R. Mudimela, and V. Penttala. "CHH Cement Composite." In Nanotechnology in Construction 3, 181–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00980-8_24.

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Wu, Keru, and Dong Zhang. "Cement-Based Composite Materials." In Composite Materials Engineering, Volume 2, 489–529. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5690-1_4.

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Wang, Jing, and Changsheng Liu. "Calcium Phosphate Composite Cement." In Springer Series in Biomaterials Science and Engineering, 187–226. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5975-9_4.

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Castaldini, A., A. Cavallini, and R. Pirini. "Fatigue Behavior of Composite Bone Cement." In Biomechanics: Basic and Applied Research, 739–44. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3355-2_107.

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Castaldini, A., and A. Cavallini. "Fracture of Acrylic Composite Bone Cement." In Biomechanics: Current Interdisciplinary Research, 147–52. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-011-7432-9_16.

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Gerasimova, E. "Composite Cement with a Polymer Addition." In Progress in Materials Science and Engineering, 107–15. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75340-9_14.

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Swift, D. G. "Sisal—Cement Composites and their Potential for Rural Africa." In Composite Structures 3, 774–87. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4952-2_55.

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Meng, Dan, C. K. Lee, and Y. X. Zhang. "Flexural Behaviour of Reinforced Polyvinyl Alcohol-Engineered Cementitious Composite Beams." In Strain-Hardening Cement-Based Composites, 441–47. Dordrecht: Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1194-2_51.

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Li, Yingxiong, Rostislav Chudoba, Jan Bielak, and Josef Hegger. "A Modelling Framework for the Tensile Behavior of Multiple Cracking Composite." In Strain-Hardening Cement-Based Composites, 418–26. Dordrecht: Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1194-2_49.

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Zhang, Shizhe, Marija Nedeljković, Bahman Ghiassi, and Guang Ye. "A Comparative Study on Deflection-Hardening Behavior of Ductile Alkali-Activated Composite." In Strain-Hardening Cement-Based Composites, 123–30. Dordrecht: Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1194-2_14.

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Conference papers on the topic "Cement composite"

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Dinesh, A. "Development of Self-Sensing Cement Composite Using Nanomaterials for Structural Health Monitoring of Concrete Columns – A Comprehensive Review." In Sustainable Materials and Smart Practices. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901953-23.

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Abstract. Due to age, structural deterioration, and other factors, concrete constructions such as beams and columns will inevitably deteriorate. The growth of nanomaterials and recent advances in multidisciplinary research has broadened cement composites' applicability in various fields. A self-sensing cement composite can detect its own deformation, strain, and stress by changing its electrical characteristics, which may be measured with electrical resistivity. Carbon-based nanomaterials, such as carbon fiber, carbon black, and carbon nanotube, have a strong potential to increase cement composite's mechanical (strength) and electrical (resistivity, sensitivity) potentials due to their remarkable strength and conductivity. Due to the artificial integration of conductive carbon-based components will generate piezoresistive properties in typical cement composites, transforming them into self-sensing cement composites. As a result, the review focuses primarily on the development of nanoparticle-based self-sensing cement composites and their use in the health monitoring of structural columns. This research critically examines the materials used, fabrication techniques, strength, and sensing methodologies used to develop the self-sensing cement composite. The difficulties of commercializing self-sensing cement composites, as well as potential solutions, are also highlighted. According to the review, the difference in Poisson ratio and youngs modulus between the self-sensing cement composite and columns leads the self-sensing cement composite to have different strength and conductivity before and after embedding in columns. According to the study, the addition of conductive material diminishes the composite's workability due to its large specific surface area. Because of the well-distributed conductive network, the composite's resistivity is significantly lowered. The study also shows that the inclusion of a self-sensing cement composite has no bearing capacity influence on the column. Finally, according to the review, the self-sensing cement composite has the ability to monitor the health of structural columns.
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Figueiredo, Stefan C., Oğuzhan Çopuroğlu, and Erik Schlangen. "EFFECT OF VISCOSITY MODIFIER ADMIXTURE ON PORTLAND CEMENT HYDRATION." In Brazilian Conference on Composite Materials. Pontifícia Universidade Católica do Rio de Janeiro, 2018. http://dx.doi.org/10.21452/bccm4.2018.02.29.

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Аларханова, З. З., and Д. К.-С. Батаев. "COMPOSITE MATERIALS MODIFIERS BASED ON CEMENT." In «АКТУАЛЬНЫЕ ВОПРОСЫ СОВРЕМЕННОЙ НАУКИ: ТЕОРИЯ, ТЕХНОЛОГИЯ, МЕТОДОЛОГИЯ И ПРАКТИКА». Международная научно-практическая онлайн-конференция, приуроченная к 60-ти летию член-корреспондента Академии наук ЧР, доктора технических наук, профессора Сайд-Альви Юсуповича Муртазаева. Crossref, 2021. http://dx.doi.org/10.34708/gstou.conf..2021.38.94.018.

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В статье рассмотрено одно из основных направлений развития наноинженерии строительных материалов. Модификация композиционных материалов на основе цемента поликарбоксилатами. Рассмотрены особенности механизма действия поликарбоксилатных суперпластификаторов на свойства бетона в сравнении с традиционными пластифицирующими добавками на основе сульфированных нафталини или меламинформальдегидных соединений. Представлены перспективы развития наноинженерии в модификации материалов на основе цемента. The article discusses one of the main directions of development of nanoengineering of building materials. Modification of cement-based composite materials with polycarboxylates. The features of the mechanism of action of polycarboxylate superplasticizers on the properties of concrete are considered in comparison with traditional plasticizing additives based on sulfonated naphthalene- and or melamine-formaldehyde compounds. Prospects for the development of nanoengineering in the modification of cement-based materials are presented.
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Sutan, N. Mohamed, S. Hamdan, A. Baharon, and Z. Rabiee. "Absorption Behaviour of Composite Cement System." In 7th International Conference on Steel and Aluminium Structures. Singapore: Research Publishing Services, 2011. http://dx.doi.org/10.3850/978-981-08-9247-0_rp039-icsas11.

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"Modeling Of Cement Based Composite Laminates." In SP-224: Thin Reinforced Cement-Based Products and Construction Systems. American Concrete Institute, 2004. http://dx.doi.org/10.14359/13416.

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Dinesh, A. "Carbon-Based Nanomaterial Embedded Self-Sensing Cement Composite for Structural Health Monitoring of Concrete Beams - A Extensive Review." In Sustainable Materials and Smart Practices. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901953-25.

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Abstract. Structural health monitoring has proven to be a dependable source for ensuring the integrity of the structure. It also aids in detecting and estimating the progression of cracks and the loss of structural performance. The most compelling components in the structural health monitoring system are sensing material and sensor technology. In health monitoring systems, fiber optic sensors, strain gauges, temperature sensors, shape memory alloys, and other types of sensors are commonly used. Even though the sensors bring monetary value to the system, they have some apparent drawbacks. As a result, self-sensing cement composite was established as a sensor alternative with better endurance and compatibility than sensors. Carbon nanotubes, nanofibers, graphene nanoplates, and graphene oxide are carbon-based nanomaterials with unique mechanical and electrical properties. As a result, this review comprises a complete assessment of the fresh, mechanical, and electrical properties of self-sensing cement composite developed using carbon-based nanoparticles. The research also focuses on the self-monitoring performance of cement composite in concrete beams, both bulk and embedded, by graphing the deviation of fractional change in resistivity with strain. The network channel development of carbon-based nanomaterials in cement composites and their characterization acquired using scanning electron microscopy (SEM), and X-Ray diffraction spectroscopy (XRD) research are also comprehensively discussed. According to the study, increasing carbon-based embedment decreased the relative slump and flowability while increasing the composite's compressive, split tensile, flexural, and post-peak performance. Also, the amount of carbon in the carbon-based nanomaterial directly relates to the composite's conductivity. As a result, the development of piezoresistive and sensing capabilities in carbon-based self-sensing cement composites not only improves mechanical and conductive properties but also serves as a sensor in structural health monitoring of flexural members.
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Zhao, Ping, Sunjung Kim, Joel Braden, Conner Abens, and Brian Hinderliter. "Properties of Cement-Sand Based Piezoelectric Composites." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7661.

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A novel cement-sand based piezoelectric smart composite was developed for structural health monitoring (SHM) in civil infrastructures. Most researches have focused on cement-based piezoelectric composites that are unrealistic in their applications due to their incompatibility with reinforced concrete with cement and sand. In this study, sand was applied to fabricate the composite to address the important issue. Two sets of specimens containing 30 vol% and 50 vol% lead zirconate titanate (PZT) were manufactured and their piezoelectric coefficient and dielectric constant were determined. The results showed that the piezoelectric effect and dielectric constant were enhanced with increasing PZT content. In addition, the sensing effect was conducted under compressive tests. The invesitigation demonstrated the feasibility of the new composite in its application to the SHM system.
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Sutan, N. Mohamed, I. Yakub, and S. Hamdan. "Physicochemical characterization of polymer composite cement systems." In HPSM/OPTI 2014. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/hpsm140101.

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"Self-Sensing Carbon Based Cement Composite Material." In Feb. 2017 International Conferences. EIRAI, 2017. http://dx.doi.org/10.17758/eirai.f0217614.

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Kalashnikov, Vladimir Ivanovich, Elena Aleksandrovna Belyakova, and Roman Nikolaevich Moskvin. "New Composite Cement for Construction 3D Printers." In International Symposium on Mechanical Engineering and Material Science (ismems-16). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/ismems-16.2016.32.

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Reports on the topic "Cement composite"

1

Young, J. F., and R. L. Berger. Cement Paste Matrix Composite Materials Center. Fort Belvoir, VA: Defense Technical Information Center, October 1987. http://dx.doi.org/10.21236/ada188657.

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SUGAMA, T. RECYCLED WASTE-BASED CEMENT COMPOSITE PATCH MATERIALS FOR RAPID/PERMANENT ROAD RESTORATION. Office of Scientific and Technical Information (OSTI), July 2001. http://dx.doi.org/10.2172/15011144.

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Thompson, Marshall, and Ramez Hajj. Flexible Pavement Recycling Techniques: A Summary of Activities. Illinois Center for Transportation, July 2021. http://dx.doi.org/10.36501/0197-9191/21-022.

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Cold in-place recycling (CIR) involves the recycling of the asphalt portions (including hot-mix asphalt and chip, slurry, and cape seals, as well as others) of a flexible or composite pavement with asphalt emulsion or foamed asphalt as the binding agent. Full-depth reclamation (FDR) includes the recycling of the entire depth of the pavement and, in some cases, a portion of the subgrade with asphalt, cement, or lime products as binding agents. Both processes are extensively utilized in Illinois. This project reviewed CIR and FDR projects identified by the Illinois Department of Transportation (IDOT) from the Transportation Bulletin and provided comments on pavement designs and special provisions. The researchers evaluated the performance of existing CIR/FDR projects through pavement condition surveys and analysis of falling weight deflectometer data collected by IDOT. They also reviewed CIR/FDR literature and updated/modified (as appropriate) previously provided inputs concerning mix design, testing procedures, thickness design, construction, and performance as well as cold central plant recycling (CCPR) literature related to design and construction. The team monitored the performance of test sections at the National Center for Asphalt Technology and Virginia Department of Transportation. The researchers assisted IDOT in the development of a CCPR special provision as well as responded to IDOT inquiries and questions concerning issues related to CIR, FDR, and CCPR. They attended meetings of IDOT’s FDR with the Cement Working Group and provided input in the development of a special provision for FDR with cement. The project’s activities confirmed that CIR, FDR, and CCPR techniques are successfully utilized in Illinois. Recommendations for improving the above-discussed techniques are provided.
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Geleva, Elena, Nina Nikolova, Dimitar Tonev, Georgi Gyoshev, Aleksandar Nikolov, Hristo Protohristov, and Stela Peneva. Immobilization of 3H on Cement-zeolite Composites. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, April 2019. http://dx.doi.org/10.7546/crabs.2019.04.04.

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Czarnecki, Lech, Andrzej Garbacz, Pawel Lukowski, and James R. Clifton. Polymer composites for repairing of Portland cement concrete:. Gaithersburg, MD: National Institute of Standards and Technology, 1999. http://dx.doi.org/10.6028/nist.ir.6394.

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Sugama, Toshifumi. Alkali-Activated Cement Composites for High Temperature Goethermal Wells. Office of Scientific and Technical Information (OSTI), December 2018. http://dx.doi.org/10.2172/1501578.

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Li, Victor C., and Yin-Wen Chan. Mechanical Interaction Between Synthetic Fiber and Cement Base Matrix in FRC Composites. Fort Belvoir, VA: Defense Technical Information Center, February 1993. http://dx.doi.org/10.21236/ada265310.

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Sugama, Toshifumi, and Tatiana Pyatina. Self-Healing, Re-adhering, and Corrosion-Mitigating Inorganic Cement Composites for Geothermal Wells at 270°-300°C: Final Report. Office of Scientific and Technical Information (OSTI), February 2019. http://dx.doi.org/10.2172/1501577.

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