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Open AccessArticle

Potential Activity of Recycled Clay Brick in Cement Stabilized Subbase

1
School of Communications, Jilin University, 5988 RenminRoad, Changchun 130000, China
2
Jilin highway administration bureau, 2518 Jiefang Road, Changchun 130000, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(23), 5208; https://doi.org/10.3390/app9235208
Received: 28 September 2019 / Revised: 15 November 2019 / Accepted: 27 November 2019 / Published: 29 November 2019
(This article belongs to the Special Issue Low Binder Concrete and Mortars)
Construction waste is one of the products in the process of urbanization. From the perspective of economy and environmental protection, this study used crushed construction waste clay brick to replace the fine aggregate of cement stabilized macadam subbase in certain proportions, and the optimum proportion was obtained according to the unconfined compressive strength of 7 days (d), 28 d, and 90 d. The “modified EDTA titration experiment" was also used to explain how the potential activity of construction waste clay brick works in cement stabilized macadam. The result obtained is that an optimal replacement ratio of 50% exists when using construction waste clay brick to replace the fine aggregate of cement stabilized macadam, and its unconfined compressive strength is higher than that of the 0% replacement ratio specimens; that is, the potential activity of the construction waste clay brick contributes the most to the unconfined compressive strength of the specimens at this proportion. According to the blending method and proportion obtained in this study, the application of construction waste clay bricks in a practical project can maximize environmental protection in road engineering and economic benefits simultaneously. View Full-Text
Keywords: road engineering; construction waste clay brick; cement stabilized macadam; unconfined compressive strength; potential activity road engineering; construction waste clay brick; cement stabilized macadam; unconfined compressive strength; potential activity
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MDPI and ACS Style

Liang, C.; Wang, Y.; Song, W.; Tan, G.; Li, Y.; Guo, Y. Potential Activity of Recycled Clay Brick in Cement Stabilized Subbase. Appl. Sci. 2019, 9, 5208.

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