纤维水泥及制品_2021_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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纤维水泥及制品

钢-PVA混杂纤维再生混凝土梁抗弯性能试验研究

苏骏1,2，赵家玉1，李磊1

2021年第6期

摘要

引用本文

苏骏,赵家玉,李磊.钢-PVA混杂纤维再生混凝土梁抗弯性能试验研究[J].混凝土与水泥制品,2021(6):50-55. SU J,ZHAO J Y,LI L.Experimental Study on Flexural Behavior of Steel-PVA Hybrid Fiber Reinforced Recycled Concrete Beams[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):50-55.

基于正交试验的纤维增强水泥基复合材料研究

陈剑敏，石建光，胡红梅，刘涛

2021年第6期

摘要

引用本文

摘要：采用正交试验法研究了水胶比、矿粉掺量、纤维掺量和种类对不同配合比纤维增强水泥基复合材料抗折强度、抗压强度和稠度的影响。结果表明：当水胶比为0.25，矿粉掺量为胶凝材料的15%，PVA纤维体积分数为1.5%时，所制备的纤维增强水泥基复合材料的综合性能最优，28 d抗折强度为13.84 MPa，28 d抗压强度为100.10 MPa，稠度为75 mm。 Abstract: The effects of water-binder ratio, mineral powder content, fiber content and types on the flexural strength, compressive strength and consistency of fiber reinforced cement-based composite materials with different mix proportions were studied by orthogonal test method. The results show that when the water-binder ratio is 0.25, the mineral powder content is 15% and the PVA fiber volume fraction is 1.5%, the comprehensive properties of the fiber reinforced cement-based composite materials are the best, and the 28 d flexural strength is 13.84 MPa, the 28 d compressive strength is 100.10 MPa and the consistency is 75 mm.

陈剑敏,石建光,胡红梅,等.基于正交试验的纤维增强水泥基复合材料研究[J].混凝土与水泥制品,2021(6):56-59,64. CHEN J M,SHI J G,HU H M,et al.Research on Fiber Reinforced Cement-based Composite Materials Based on Orthogonal Test Method[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):56-59,64.

冻融循环后PE-ECC梁受弯性能试验研究

韩风霞1,2，刘继颜1，韩霞1,2，刘鹏举1，贺成林1

2021年第6期

摘要

引用本文

摘要：通过四点弯曲试验，研究了冻融循环0次、50次、100次、150次、200次后聚乙烯纤维超高韧性水泥基复合材料（PE-ECC）梁的受弯性能。结果表明：PE-ECC梁的质量损失、极限荷载、跨中最大挠度均随着冻融循环次数的增加而降低，但降低程度不显著，说明冻融循环后PE-ECC梁的受弯性能退化不明显。 Abstract: Four point bending tests were carried out to study the flexural behavior of polyethylene fiber ultra-high toughness cement-based composite(PE-ECC) beams after freeze-thaw cycles of 0, 50, 100, 150 and 200. The results show that the mass loss, ultimate load and maximum deflection of PE-ECC beams decrease with the increase of freeze-thaw cycles, but the reduction degree is not significant, which indicates that the flexural performance degradation of PE-ECC beams is not obvious after freeze-thaw cycles.

韩风霞,刘继颜,韩霞,等.冻融循环后PE-ECC梁受弯性能试验研究[J].混凝土与水泥制品,2021(6):60-64. HAN F X,LIU J Y,HAN X,et al.Experimental Study on Bending Performance of PE-ECC Beams After Freeze-thaw Cycle[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):60-64.

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