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
收藏
页码：218 / 225
页数：8
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