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Abstract

To achieve the green and energy-saving goals of concrete, by taking the sea sand content and polypropylene fiber content as two variables, this paper analyzed the effects of the two variables on the durability properties of concrete, such as chloride penetration resistance, permeation resistance, and carbonation resistance. The results show that under a constant fiber content, as the sea sand content increases, the electric flux, water seepage height, and carbonation depth of concrete gradually rise, and the increase rate gradually grows with the rising sea sand content. Meanwhile, when the sea sand content is constant, with the increasing fiber content, the electric flux, water seepage height, and carbonation depth of concrete gradually decrease, and the reduction rate gradually decreases with the growing fiber content. Under the sea sand content of 50%, 1% polypropylene fiber should be added to the concrete to compensate for the adverse effects of sea sand on the concrete. However, when the sea sand content is 100%, more polypropylene fiber is needed to compensate for the adverse effects of sea sand on the concrete. Therefore, given both the economic and environmental aspects, it is recommended to select a material with sea sand content of 50% and fiber content of 1% to prepare environmentally friendly concrete.

Publication Date

8-18-2022

DOI

10.14048/j.issn.1671-2579.2022.04.037

First Page

203

Last Page

205

Submission Date

May 2025

Reference

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