Fresh and hardened properties of self-compacting concrete with different mineral additions and fibers

N. Haddadou, R. Chaid, Y. Ghernouti, Naima Adjou, Malik Bouzoualegh
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引用次数: 13

Abstract

In this work, several reinforced self-compacting concretes were prepared by using three types of fibers made of steel, polypropylene and glass, and three different types of mineral additions (marble powder, metakaolin and limestone powder). The water to cement ratio was kept constant at 0.34 and fibers were used in combination, keeping the total fiber content constant at 60 kg/m3. Slump flow diameter, L-Box, stability and air content were performed to assess the fresh properties of the concrete. Compressive strength, flexural strength, splitting tensile strength and ultrasonic pulse velocity of the concrete were determined for the hardened properties.Noteworthy performances were generally obtained, particularly in hardened properties for the self-compacting concretes prepared with steel fibers in association with polypropylene fiber and marble powder as mineral addition.
掺加不同矿物和纤维的自密实混凝土的新鲜和硬化性能
在这项工作中,使用三种由钢、聚丙烯和玻璃制成的纤维以及三种不同类型的矿物添加剂(大理石粉、偏高岭土和石灰石粉)制备了几种增强自密实混凝土。水灰比保持在0.34,纤维混合使用,总纤维含量保持在60 kg/m3。通过坍落度流径、L-Box、稳定性和空气含量来评价混凝土的新鲜性能。测定了混凝土的抗压强度、抗折强度、劈裂抗拉强度和超声脉冲速度的硬化性能。在自密实混凝土中,钢纤维与聚丙烯纤维、大理石粉等矿物掺合配制的自密实混凝土具有显著的硬化性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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