Results 21 to 30 of about 266,361 (221)

Effect of the mix composition with superplasticizer admixture on mechanical properties of high–strength concrete based on reactive powders [PDF]

Archives of Civil Engineering, 2023
This paper outlines effect of the mix composition on mechanical properties of high–strength concrete based on aggregate size like in of Reactive Powder Concrete (RPC) but without fiber reinforcement.
Jarosław Siwiński, Anna Szcześniak, Barbara Nasiłowska, Zygmunt Mierczyk, Katarzyna Kubiak, Adam Stolarski   +5 more
doaj   +1 more source

Investigation of Cement, Mineral and Chemical Additive Interactions in Micro Scales

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Self-compacting concretes (SCC), a new type of concrete, were realized with the development of polycarboxylate-based chemical additives. The interaction of these additives with the powder materials in the nano and micro scales affects the fresh and ...
Murat Gökçe, Osman Şimşek, Kenan Toklu   +2 more
doaj   +1 more source

Effect of Polycarboxylate-Silane Modified Graphene Oxide Composite on the Properties of Cement Pastes

, 2022
As a nano-carbon material with excellent properties, Graphene oxide (GO) has been widely used in cement-based materials, and the negative effect of paste workability caused by GO agglomeration has also been widely concerning.
Shuang Liu, Xiao Liu, Li, Shiyu, Qin Wang, Zhang, Ruifeng, Ruifeng Zhang, Shiyu Li, Liu, Xiao, Liu, Shuang, Wang, Qin   +9 more
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Incorporating graphene oxide into lime solution: A study of flocculation and corresponding improvement

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, Z. M. Ye, X. L. Lu, J. M. Wu, S. X. Wang, X. Cheng   +5 more
doaj   +1 more source

Phosphonated superplasticizers synthesis: adsorption, dispersion and fluidification ability on calcium carbonate suspensions.

EPJ Web of Conferences, 2017
Superplasticizers are chemical admixtures used to fluidize cement pastes. Among them, polycarboxylate are comb-like copolymers with carboxylic acid and poly(ethylene glycol) side chains.
Tramaux A., Azéma N., David G., Negrell C., Poulesquen A., Haas J., Remond S.   +6 more
doaj   +1 more source

Dispersion of Carbon Nanotubes with Different Types of Superplasticizer as a Dispersing Agent for Self-Sensing Cementitious Materials

Applied Sciences, 2021
Due to their exceptional electrical properties, carbon nanotubes (CNTs) can be applied as conductive fillers to develop self-sensing cement-based matrices.
Pedro de Almeida Carísio, Yasmim Gabriela dos Santos Mendonça, Carlos Fernando Teodósio Soares, Oscar Aurelio Mendoza Reales, Eduardo de Moraes Rego Fairbairn, Romildo Dias Toledo Filho   +5 more
doaj   +1 more source

Methodological Substantiation of the choice for a stabilizer for bismuth titanate fine particles suspensions [PDF]

Нанотехнологии в строительстве, 2023
: Introduction. The current stage of the construction industry and building materials science development involves the introduction and widespread application of nano- and fine particles capable of improving the properties of traditional materials ...
Svetlana V. Samchenko, Irina V. Kozlova, Olga V. Zemskova, Marina O. Dudareva   +3 more
doaj   +1 more source

Investigation of the Effects of Polyurethane-Modified Polycarboxylate at Ambient Temperature on the Characteristics of Cement with Supplementary Cementitious Materials

, 2023
Via radical polymerization, three polyurethane-modified polycarboxylate molecules of various comb topologies were synthesized. This study investigated the effects of varying types and concentrations of supplementary cementitious materials (SCMs) on the ...
Zhen Jiang, Jiake Zhang, Shuncheng Xiang, Liangjun Huang, Tingxiang Zheng, Bin Liu   +5 more
core   +1 more source

Evaluating the Antimicrobial Properties of Glass Ionomer, Zinc Phosphate, and Polycarboxylate Cement

Majallah-i dānishgāh-i ̒ulūm-i pizishkī-i Arāk, 2021
Background and Aim: There exists increased demineralization risk of enamel adjacent to fixed orthodontic attachments by cariogenic bacterias (e.g., Streptpcoccus mutans, Streptpcoccus sobrinus) and inadequate data about commonly used orthodontic cements.
Rahil Mirzaei, Mehdi Javad Chavosh, Mehdi Rajabnia, Valiollah Arash, Ali Bijiani, Maysam Mirzaie, Mohamad Mehdi Naghibi Sistani   +6 more
doaj  

Processing and product characteristics of a blended cement grout incorporating polycarboxylate ether superplasticiser [PDF]

, 2018
Superplasticisers improve the flow properties of cement and offer a number of operational advantages to producers of radioactive waste. Research is underway to clarify their mode of interaction using a bespoke, purified polycarboxylate ether (PCE ...
Rawlinson, Steven, Matthew Isaacs, Adam Qaisar, Christie, Steven, Michael Angus, Steven Rawlinson, Isaacs, Matthew, Steven Edmondson, Read, David, Angus, Michael, Steven Christie, David Read, Qaisar, Adam, Martin Hayes, Hayes, Martin, Edmondson, Steven   +15 more
core   +1 more source