废胶粉与PVA纤维协同改性混凝土力学性能与抗渗耐久性研究

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废胶粉与PVA纤维协同改性混凝土力学性能与抗渗耐久性研究

Mechanical Properties and Anti-permeability Durability of Concrete Modified by Waste Rubber Power and PVA Fiber

２０19年第9期

废旧胶粉；PVA 纤维；高性能混凝土；力学强度；软化系数；抗渗耐久性

Waste rubber powder; PVA fiber; High performance concrete; Mechanical property; Softening coefficient; Anti-permeability durabil

２０19年第9期

10.19761/j.1000-4637.2019.09.046.04

罗健林1,2,3，李炳良1，李秋义2,4，刘超3，李贺3

1.陕西省高性能混凝土工程实验室，渭南 714099；2.山东省蓝色经济区工程建设与安全协同创新中心，青岛 266033；3.青岛理工大学土木工程学院，266033；4.青岛农业大学建筑工程学院，266109

罗健林1,2,3，李炳良1，李秋义2,4，刘超3，李贺3

罗健林,李炳良,李秋义,等.废胶粉与PVA纤维协同改性混凝土力学性能与抗渗耐久性研究[J].混凝土与水泥制品,2019(9):46-49.

LUO J L,LI B L,LI Q Y,et al.Mechanical Properties and Anti-permeability Durability of Concrete Modified by Waste Rubber Power and PVA Fiber[J].China Concrete and Cement Products,2019(9):46-49.

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摘要：采用碱浸泡及偶联剂协同处理废旧胶粉（WRP）及PVA纤维，研究了不同掺量、不同细度的废旧胶粉及PVA纤维的混凝土（WPMC）的单面吸水率和劈裂抗拉强度及干燥、饱水抗压强度，分析了相应软化系数及拉压比变化规律。结果表明，废旧胶粉及PVA纤维掺入能降低WPMC的单面吸水率，提升软化系数及拉压比。掺5%细废旧胶粉及0.5%PVA纤维的WPMC不仅成本低，且拥有最佳力学韧性与抗渗耐久综合性能，可应用在建筑地坪、城市园林、公路防撞护栏等领域。 Abstract: Waste rubber powder and PVA fibers were treated by alkali soaking and coupling agent, and the single-surface water absorption, spitting tensile strength, dried and saturated compressive strength of the concrete (WPMC) doped with different amounts and different fineness of waste rubber powder and PVA fibers were comprehensively studied, and the corresponding softening coefficient and the variation rule of tensile pressure ratio were also investigated. The results show that the incorporation of waste rubber powder and PVA fibers can reduce the the single-surface water absorption, and increase the corresponding softening coefficient and tensile pressure ratio of WPMC. The WPMC doped with 5% finer waste rubber powder and 0.5% PVA fibers not only has low cost, but also has superior mechanical toughness and anti-impermeability durability, which can be applied in the engineering fields of building floors, urban gardens, highway anti-collision guardrails, etc.

英文名 : Mechanical Properties and Anti-permeability Durability of Concrete Modified by Waste Rubber Power and PVA Fiber

刊期 : ２０19年第9期

关键词 : 废旧胶粉；PVA 纤维；高性能混凝土；力学强度；软化系数；抗渗耐久性

Key words : Waste rubber powder; PVA fiber; High performance concrete; Mechanical property; Softening coefficient; Anti-permeability durabil

刊期 : ２０19年第9期

DOI : 10.19761/j.1000-4637.2019.09.046.04

文章编号 :

基金项目 :

作者 : 罗健林1,2,3，李炳良1，李秋义2,4，刘超3，李贺3

单位 : 1.陕西省高性能混凝土工程实验室，渭南 714099；2.山东省蓝色经济区工程建设与安全协同创新中心，青岛 266033；3.青岛理工大学土木工程学院，266033；4.青岛农业大学建筑工程学院，266109

罗健林1,2,3，李炳良1，李秋义2,4，刘超3，李贺3

罗健林,李炳良,李秋义,等.废胶粉与PVA纤维协同改性混凝土力学性能与抗渗耐久性研究[J].混凝土与水泥制品,2019(9):46-49.

LUO J L,LI B L,LI Q Y,et al.Mechanical Properties and Anti-permeability Durability of Concrete Modified by Waste Rubber Power and PVA Fiber[J].China Concrete and Cement Products,2019(9):46-49.

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摘要

参数

结论

参考文献

引用本文

摘要：采用碱浸泡及偶联剂协同处理废旧胶粉（WRP）及PVA纤维，研究了不同掺量、不同细度的废旧胶粉及PVA纤维的混凝土（WPMC）的单面吸水率和劈裂抗拉强度及干燥、饱水抗压强度，分析了相应软化系数及拉压比变化规律。结果表明，废旧胶粉及PVA纤维掺入能降低WPMC的单面吸水率，提升软化系数及拉压比。掺5%细废旧胶粉及0.5%PVA纤维的WPMC不仅成本低，且拥有最佳力学韧性与抗渗耐久综合性能，可应用在建筑地坪、城市园林、公路防撞护栏等领域。
Abstract: Waste rubber powder and PVA fibers were treated by alkali soaking and coupling agent, and the single-surface water absorption, spitting tensile strength, dried and saturated compressive strength of the concrete (WPMC) doped with different amounts and different fineness of waste rubber powder and PVA fibers were comprehensively studied, and the corresponding softening coefficient and the variation rule of tensile pressure ratio were also investigated. The results show that the incorporation of waste rubber powder and PVA fibers can reduce the the single-surface water absorption, and increase the corresponding softening coefficient and tensile pressure ratio of WPMC. The WPMC doped with 5% finer waste rubber powder and 0.5% PVA fibers not only has low cost, but also has superior mechanical toughness and anti-impermeability durability, which can be applied in the engineering fields of building floors, urban gardens, highway anti-collision guardrails, etc.

关键词:

废旧胶粉；PVA纤维；高性能混凝土；力学强度；软化系数；抗渗耐久性

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废胶粉与PVA纤维协同改性混凝土力学性能与抗渗耐久性研究

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