Results 21 to 30 of about 5,625 (250)
Optimization of Self-Compacting Concrete Containing Blast-Furnace Slag Compositions
Advances in Materials Science and Engineering, 2022 The paper deals with composition design of self-compacting concrete containing blast furnace granulated slag and polycarboxylate type superplasticizer in a wide range of concrete strength classes.
Vadim Zhitkovsky +2 more
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Research on performance of new type cement slurry for water shutoff in coal mine roadway
Meikuang Anquan, 2021 In view of the problem that the water gushing problem of deep coal mine roadway seriously affects the safety of coal mine construction, and the common cement grout is difficult to seal up the tiny rock cracks, the micron-grade fly ash is used to replace
LIU Huini, LI Xungang, LI Yanzhi, ZHANG Shuai, CHEN Pengcheng, WU Yue, FAN Zhenwang, TANG Chao
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Study on utilization of carboxyl group decorated carbon nanotubes and carbonation reaction for improving strengths and microstructures of cement paste [PDF]
, 2016 Carbon nanotubes (CNTs) have excellent mechanical properties and can be used to reinforce cement-based materials. On the other hand, the reaction product of carbonation with hydroxides in hydrated cement paste can reduce the porosity of cement-based ...
Cui, H, Qin, Q, Tang, W, Yan, X, Zhou, X
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Materiales de Construccion, 2018 The dispersion behavior of graphene oxide in cement matrix is one important factor in enhancing cement performance. In this work, we investigated the dispersion of graphene oxide in cement by simulating alkaline environment with a solution of calcium ...
G. J. Jing +5 more
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ZrO2 nanoparticles' effects on split tensile strength of self compacting concrete
Materials Research, 2010 In the present study, split tensile strength of self compacting concrete with different amount of ZrO2 nanoparticles has been investigated. ZrO2 nanoparticles with the average particle size of 15 nm were added partially to cement paste (Portland cement ...
Ali Nazari, Shadi Riahi
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Low-heat steaming treatment of concrete with polycarboxylate superplasticizers
Magazine of Civil Engineering, 2021 Recommendations for quantity of polycarboxylate water-reducing admixtures, for the properties of Portland cement as well as the curing regimes is presented in order to reduce the Portland cement amount, to improve the transfer and design strength and ...
Olga Smirnova
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Flow performance of hybrid cement based mortars [PDF]
, 2017 This paper reports experimental results of 32 hybrid cement mixes regarding the joint effect of sodium hydroxide concentration, the use of a commercial superplasticizer and a biopolymer on the flow and compressive strength performance.
Abdollahnejad, Zahra +2 more
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Advances in Civil Engineering, 2020 Good fluidity is the precondition to ensure the pipeline transportation of the filling slurry. The admixture in the filling slurry will affect the rheological properties of the slurry.
Fulin Wang +3 more
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Study on the Adaptability of Polycarboxylate Superplasticizer to Cement in Guangdong Area [PDF]
E3S Web of ConferencesThere are many types of cement in Guangdong, each with its own differences, so it is important to study the adaptability of polycarboxylate superplasticizer to cement in Guangdong.
Wang Baoxian +3 more
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Influence of superplasticizers on the evolution of ultrasonic P-wave velocity through cement pastes at early age [PDF]
, 2013 The paper discusses a possibility of using an ultrasonic wave transmission method to study the influence of superplasticizers on the formation of structure of cement pastes at early ages. When compared to mixtures without additives, lower P-wave velocity
Trtnik, Gregor, Turk, Goran
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