Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste

Calcium silicate hydrate-polycarboxylate (C-S-H-PCE) nanocomposites can greatly increase the hydration speed of cement paste. To obtain the optimal synthesis condition for smaller particle size, C-S-H-PCE was prepared by adding Ca(NO3)2(4H2O and Na2SiO3(5H2O solution into PCE dispersion solution und...

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Autores principales:	Ming Wang, Yusen Ai, Renliang Huang, Guojie Ding, Wei Qi, Zhimin He, Rongxin Su
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/b57ab9ec271c461288b259255c965557
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spelling	oai:doaj.org-article:b57ab9ec271c461288b259255c9655572021-11-15T21:48:17ZSynthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste10.3303/CET21880832283-9216https://doaj.org/article/b57ab9ec271c461288b259255c9655572021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11876https://doaj.org/toc/2283-9216Calcium silicate hydrate-polycarboxylate (C-S-H-PCE) nanocomposites can greatly increase the hydration speed of cement paste. To obtain the optimal synthesis condition for smaller particle size, C-S-H-PCE was prepared by adding Ca(NO3)2(4H2O and Na2SiO3(5H2O solution into PCE dispersion solution under high speed stirring, and the effects of reaction temperature, drip flow rate, aging time, C-S-H content and molecular weight of PCE on the particle size distribution of C-S-H were studied. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were employed to conduct the analysis of particle size and morphology of the prepared C-S-H-PCE. The application performance of the nano composite was characterized by testing the compressive strength of cement paste added with C-S-H-PCE. The experimental results showed that at 25 ?, C-S-H-PCE synthesized with lower PCE molecular weight, slower drip flow rate, and smaller C-S-H content had better performance. The compressive strength of cement paste with C-S-H-PCE cured under low temperature condition was tested. It turned out that the prepared nanocomposites can remarkably enhance the early strength of cement paste for up to 63.8 % and 24.2 % after 1 d and 3 d.Ming WangYusen AiRenliang HuangGuojie DingWei QiZhimin HeRongxin SuAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Ming Wang Yusen Ai Renliang Huang Guojie Ding Wei Qi Zhimin He Rongxin Su Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste
description	Calcium silicate hydrate-polycarboxylate (C-S-H-PCE) nanocomposites can greatly increase the hydration speed of cement paste. To obtain the optimal synthesis condition for smaller particle size, C-S-H-PCE was prepared by adding Ca(NO3)2(4H2O and Na2SiO3(5H2O solution into PCE dispersion solution under high speed stirring, and the effects of reaction temperature, drip flow rate, aging time, C-S-H content and molecular weight of PCE on the particle size distribution of C-S-H were studied. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were employed to conduct the analysis of particle size and morphology of the prepared C-S-H-PCE. The application performance of the nano composite was characterized by testing the compressive strength of cement paste added with C-S-H-PCE. The experimental results showed that at 25 ?, C-S-H-PCE synthesized with lower PCE molecular weight, slower drip flow rate, and smaller C-S-H content had better performance. The compressive strength of cement paste with C-S-H-PCE cured under low temperature condition was tested. It turned out that the prepared nanocomposites can remarkably enhance the early strength of cement paste for up to 63.8 % and 24.2 % after 1 d and 3 d.
format	article
author	Ming Wang Yusen Ai Renliang Huang Guojie Ding Wei Qi Zhimin He Rongxin Su
author_facet	Ming Wang Yusen Ai Renliang Huang Guojie Ding Wei Qi Zhimin He Rongxin Su
author_sort	Ming Wang
title	Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste
title_short	Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste
title_full	Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste
title_fullStr	Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste
title_full_unstemmed	Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste
title_sort	synthesis of nanoscale calcium silicate hydrate for strength enhancement of cement paste
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/b57ab9ec271c461288b259255c965557
work_keys_str_mv	AT mingwang synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste AT yusenai synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste AT renlianghuang synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste AT guojieding synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste AT weiqi synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste AT zhiminhe synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste AT rongxinsu synthesisofnanoscalecalciumsilicatehydrateforstrengthenhancementofcementpaste
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Synthesis of Nanoscale Calcium Silicate Hydrate for Strength Enhancement of Cement Paste

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