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Design Method for Proportion of Cement-Foamed Asphalt Cold Recycled Mixture

By Li Junxiao, Fu Wei and Zang Hechao

Abstract

Through foaming experiment of Zhongtai AH-70 asphalt, the best foaming temperature water consumption and influence factors of foamed asphalt’s foaming features are determined; By designing the proportion of foamed asphalt cold in-place recycled mixture combined with the water stability experiment, for this mixture the best foamed asphalt addition is 3%, and proportion of the mixture is RAP: fine aggregate: cement=75:23:2. Using SEM technology, the mechanism of increasing on the intensity of foamed asphalt mixture resulted by the addition of cement was analysed. This research provides reference for cement admixture’s formulation in the designing of foamed asphalt cold in-place recycled mixture

Topics: Engineering (General). Civil engineering (General), TA1-2040
Publisher: EDP Sciences
Year: 2018
DOI identifier: 10.1051/matecconf/201714202002
OAI identifier: oai:doaj.org/article:627de25995ea4a6fbc5ef5fb09e5bc85
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