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Compressive and Indirect Tensile Strengths of Cement-Treated Mix Granulates with Recycled Masonry and Concrete Aggregates

Xuan, Dongxing / Molenaar, André A. A. / Houben, Lambert J. M.

Abstract

Reuse of construction and demolition waste (CDW) as a road base material is one of the effective methods to reduce environmental effects caused by CDW dumping in landfills. To explore the feasibility to reuse CDW as a cement-treated material, this paper investigated the compressive and indirect tensile strengths of cement-treated demolition waste. Because the recycled CDW is a mix of recycled masonry and concrete, different ratios of recycled crushed masonry-concrete aggregates by mass were chosen in this study. Four mixture variables (cement content, degree of compaction, masonry content, and curing time) and their influence on the mechanical properties of cement-treated mix granulates ( ${CTM}_{i} G_{r}$ ) were then considered. Experimental results showed that a general model to estimate the compressive and indirect tensile strengths of ${CTM}_{i} G_{r}$ can be established in relation to those four mixture variables. Compared with normal cement-treated granular materials, the masonry content is another unique factor to determine the mechanical properties of ${CTM}_{i} G_{r}$ and its failure pattern. Furthermore, this study showed that ${CTM}_{i} G_{r}$ may be designed to have a good mechanical strength as a cemented road base.

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Compressive and Indirect Tensile Strengths of Cement-Treated Mix Granulates with Recycled Masonry and Concrete Aggregates

Xuan, Dongxing / Molenaar, André A. A. / Houben, Lambert J. M.

Abstract

Reuse of construction and demolition waste (CDW) as a road base material is one of the effective methods to reduce environmental effects caused by CDW dumping in landfills. To explore the feasibility to reuse CDW as a cement-treated material, this paper investigated the compressive and indirect tensile strengths of cement-treated demolition waste. Because the recycled CDW is a mix of recycled masonry and concrete, different ratios of recycled crushed masonry-concrete aggregates by mass were chosen in this study. Four mixture variables (cement content, degree of compaction, masonry content, and curing time) and their influence on the mechanical properties of cement-treated mix granulates ( ${CTM}_{i} G_{r}$ ) were then considered. Experimental results showed that a general model to estimate the compressive and indirect tensile strengths of ${CTM}_{i} G_{r}$ can be established in relation to those four mixture variables. Compared with normal cement-treated granular materials, the masonry content is another unique factor to determine the mechanical properties of ${CTM}_{i} G_{r}$ and its failure pattern. Furthermore, this study showed that ${CTM}_{i} G_{r}$ may be designed to have a good mechanical strength as a cemented road base.

Compressive and Indirect Tensile Strengths of Cement-Treated Mix Granulates with Recycled Masonry and Concrete Aggregates

Xuan, Dongxing / Molenaar, André A. A. / Houben, Lambert J. M.

Abstract

Reuse of construction and demolition waste (CDW) as a road base material is one of the effective methods to reduce environmental effects caused by CDW dumping in landfills. To explore the feasibility to reuse CDW as a cement-treated material, this paper investigated the compressive and indirect tensile strengths of cement-treated demolition waste. Because the recycled CDW is a mix of recycled masonry and concrete, different ratios of recycled crushed masonry-concrete aggregates by mass were chosen in this study. Four mixture variables (cement content, degree of compaction, masonry content, and curing time) and their influence on the mechanical properties of cement-treated mix granulates ( ${CTM}_{i} G_{r}$ ) were then considered. Experimental results showed that a general model to estimate the compressive and indirect tensile strengths of ${CTM}_{i} G_{r}$ can be established in relation to those four mixture variables. Compared with normal cement-treated granular materials, the masonry content is another unique factor to determine the mechanical properties of ${CTM}_{i} G_{r}$ and its failure pattern. Furthermore, this study showed that ${CTM}_{i} G_{r}$ may be designed to have a good mechanical strength as a cemented road base.

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Title:

Compressive and Indirect Tensile Strengths of Cement-Treated Mix Granulates with Recycled Masonry and Concrete Aggregates

Contributors:

Xuan, Dongxing (author) / Molenaar, André A. A. (author) / Houben, Lambert J. M. (author)

Published in:

Journal of Materials in Civil Engineering ; 24 ; 577-585

Publication date:

2011-10-08

Size:

92012-01-01 pages

ISSN:

0899-1561 , 1943-5533

DOI:

https://doi.org/10.1061/(ASCE)MT.1943-5533.0000401

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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