气候变化领域集成服务门户(CCPortal): Fine aggregate substitution with acidified granular activated carbon influences fresh-state and mechanical properties of ordinary Portland cement mortars

CCPortal

DOI	10.1016/j.conbuildmat.2019.02.063
	Fine aggregate substitution with acidified granular activated carbon influences fresh-state and mechanical properties of ordinary Portland cement mortars
	Justo-Reinoso I.; Caicedo-Ramirez A.; Srubar W.V.; III; Hernandez M.T.
发表日期	2019
ISSN	9500618
起始页码	59
结束页码	69
卷号	207
英文摘要	The compressive strength and selected fresh-state responses to incorporating acid-modified granular activated carbon (GAC) in cement mortars, were compared to physical cement behaviors associated with the incorporation of otherwise unmodified GAC and a commercial polycarboxylate superplasticizer. Specific surface area of unmodified and acidified GAC, porosity, pH at charge neutrality (pH PZC ), and surface-associated functional groups were compared. Fresh- and hardened-state responses were observed, including slump, setting time, zeta potential, and compressive strength. Results suggest that substituting 1% of the fine aggregate mass with GAC particles that had been pre-treated in nitric acid, can improve compressive strength and workability of cement mortar.
英文关键词	Acidified activated carbon; Cement mortar; FTIR; Polycarboxylate-ether; Superplasticizer; Workability; Zeta potential
scopus关键词	Activated carbon; Aggregates; Granular materials; Mechanical properties; Mortar; Portland cement; Zeta potential; Cement mortars; FTIR; Polycarboxylate ethers; Superplasticizers; Workability; Compressive strength
来源期刊	Construction and Building Materials
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176199
作者单位	Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, ECOT 441 UCB 428, Boulder, CO 80309-0428, United States
推荐引用方式 GB/T 7714	Justo-Reinoso I.,Caicedo-Ramirez A.,Srubar W.V.,et al. Fine aggregate substitution with acidified granular activated carbon influences fresh-state and mechanical properties of ordinary Portland cement mortars[J],2019,207.
APA	Justo-Reinoso I.,Caicedo-Ramirez A.,Srubar W.V.,III,&Hernandez M.T..(2019).Fine aggregate substitution with acidified granular activated carbon influences fresh-state and mechanical properties of ordinary Portland cement mortars.Construction and Building Materials,207.
MLA	Justo-Reinoso I.,et al."Fine aggregate substitution with acidified granular activated carbon influences fresh-state and mechanical properties of ordinary Portland cement mortars".Construction and Building Materials 207(2019).