Study of the Effects of the Addition of Fly Ash from Carwash Sludge in Lime and Cement Pastes

被引：5

作者：

Rodriguez-Fernandez, Maria C. ^{[1
]}

Alonso, Juan D. ^{[1
]}

Montero, Carolina ^{[2
]}

Saldarriaga, Juan F. ^{[1
]}

机构：

[1] Univ Andes, Dept Civil & Environm Engn, Carrera 1 Este 19A-40, Bogota 111711, Colombia

[2] Cent Univ Ecuador, Chem Engn Fac, Ritter S-N & Bolivia,Ciudad Univ, Quito 170521, Ecuador

来源：

SUSTAINABILITY | 2020年 / 12卷 / 16期

关键词：

carwash sludge; lime paste; cement; fly ash; reactivity; mortars; WASTE-WATER; MECHANICAL-PROPERTIES; NANOMETER CHANNEL; HEAVY-METALS; HYDRATION; GEOPOLYMER; RHEOLOGY; ULTRAFILTRATION; NANOFILTRATION; APPLICABILITY;

D O I：

10.3390/su12166451

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sludge from carwash wastewater treatment plants has been evaluated as substitute for lime paste, as well as its behavior in cement mortars. Dry sludge waste was used with (CSlud) and without (USlud) pretreatment and have been characterized. The pastes were prepared with weight replacement of 5, 10, 15, and 20% of sludge. The formation of calcium silicate hydrate was determined by TGA, both in lime and cement pastes. The compressive strength properties were evaluated in mortars. It was found the mixtures which present the best results were those of 5 and 10% for USlud, and 10 and 20% for CSlud.

引用

页数：13

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