Durability of biomass fly ash concrete: Freezing and thawing and rapid chloride permeability tests

被引：110

作者：

Wang, Shuangzhen ^{[1
]}

Llamazos, Emilio ^{[1
]}

Baxter, Larry ^{[1
]}

Fonseca, Fernando ^{[2
]}

机构：

[1] Brigham Young Univ, Dept Chem Engn, Provo, UT 84602 USA

[2] Brigham Young Univ, Dept Civil Engn, Provo, UT 84602 USA

来源：

FUEL | 2008年 / 87卷 / 03期

关键词：

biomass fly ash; permeability; freezing and thawing;

D O I：

10.1016/j.fuel.2007.05.027

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Strict interpretation of ASTM C 618 excludes non-coal fly ashes, such as biomass fly ashes from addition in concrete. Biomass fly ash in this investigation includes (1) cofired fly ash from burning biomass with coal; (2) wood fly ash and (3) blended fly ash (wood fly ash mixing with coal fly ash). A set of experiments conducted on concrete from pure cement and cement with fly ash provide basic data to assess the effects of several biomass fly ashes on the performances of freezing and thawing (F-T) and rapid chloride permeability test (RCPT). The F-T tests indicate that all fly ash concrete has statistically equal or less weight loss than the pure cement concrete (control). The RCPT illustrate that all kinds of fly ash concrete have lower chloride permeability than the pure cement control concrete. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：359 / 364

页数：6

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