Effect of Addition of Polypropylene Fibers on The Properties of Gypsum Blocks

F. Barakat, N. F. A. Salam
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引用次数: 2

Abstract

Gypsum panels and blocks represent a good economical method for the manufacture of partitions and walls, since the raw material cost as well as the labor cost are cheap, besides the ease of decoration. Their main drawbacks are the high-water permeability and their poor mechanical strength. In the present paper, polypropylene (PP) fibers were blended with plaster in an attempt to improve the properties of these products. It was found that the addition of PP fibers reduces the porosity, decreases the setting time and enhances the mechanical strength. The optimum composition was found to consist of plaster blended with 50% water, 10% sand and 500 g/m3 PP fibers of length 30 – 50 mm.
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聚丙烯纤维掺量对石膏砌块性能的影响
石膏板和砌块是制造隔墙和墙壁的一种很好的经济方法,因为原材料成本和人工成本都很便宜,而且易于装饰。其主要缺点是透水性高,机械强度差。在本文中,聚丙烯(PP)纤维与石膏混合,试图改善这些产品的性能。结果表明,PP纤维的加入降低了材料的孔隙率,缩短了凝固时间,提高了材料的机械强度。石膏的最佳配比为50%水、10%砂和长度为30 ~ 50 mm的500 g/m3 PP纤维。
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