Cement kiln dust and fly ash blends as an alternative binder for the stabilization of demolition aggregates

被引：76

作者：

Arulrajah, Arul

Mohammadinia, Alireza ^{[1
]}

D'Amico, Angelo ^{[2
,3
]}

Horpibulsuk, Suksun ^{[4
,5
]}

机构：

[1] Univ Melbourne, Dept Infrastruct Engn, Melbourne, Vic 3010, Australia

[2] Montdami Construct Pty Ltd, Dandenong South, Vic 3175, Australia

[3] Retic Pipelines Pty Ltd, Dandenong South, Vic 3175, Australia

[4] Suranaree Univ Technol, Sch Civil Engn, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand

[5] Suranaree Univ Technol, Ctr Innovat Sustainable Infrastruct Dev, Nakhon Ratchasima 30000, Thailand

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 145卷

关键词：

Cement; Kiln dust; Demolition; Stabilization; Construction; RECLAIMED ASPHALT PAVEMENT; PERFORMANCE; MODULUS;

D O I：

10.1016/j.conbuildmat.2017.04.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Cement kiln dust (CKD) is an industrial by-product formed during the manufacture of cement. Fly Ash (FA) is the by-product of coal-fired electricity generation. Construction and Demolition (C&D) materials are alternative aggregates used in construction applications. CKD is calcium-rich whereas FA is silica rich, hence the unique combination of these two pozzolanic materials (CKD + FA) were investigated as an alternative binder to stabilize C&D materials. The usage of CKD + FA to stabilize C&D aggregates comprised of Recycled Concrete Aggregate (RCA), Crushed Brick (CB) and Reclaimed Asphalt Pavement (RAP) will have environmental and economic benefits. The strength characterization of CKD + FA stabilized C&D materials was evaluated by undertaking Unconfined Compressive Strength (UCS) tests. The durability of the CKD + FA stabilized C&D materials under simulated loadings was evaluated by Repeated Load Triaxial (RLT) tests to determine the resilient modulus (MR). The optimum performance for stabilizing C&D materials was obtained at the mix design with 20%CKD + 10%FA. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：218 / 225

页数：8

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