再生PET塑料骨料对砂浆单轴受压性能的影响_《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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再生PET塑料骨料对砂浆单轴受压性能的影响

Effect of Recycled PET Plastic Aggregate on Uniaxial Compression Performance of Mortar

2022年第1期

再生PET塑料骨料；单轴受压；应力-应变曲线；峰值应力；抗压韧性指数；本构关系

Recycled PET plastic aggregate; Uniaxial compressive; Stress-strain curve; Peak stress; Compressive toughness index; Constitutive relationship

2022年第1期

10.19761/j.1000-4637.2022.01.095.05

绍兴市科技创新计划项目（2018C30007、2019B22002）。

陆俊1，鲍聪2，方刘基2，占海华3，梁超锋2

1.浙江永坚新材料科技股份有限公司，浙江绍兴 312369；2.绍兴文理学院土木工程学院，浙江绍兴 312000；3.绍兴文理学院纺织服装学院，浙江绍兴 312000

陆俊1，鲍聪2，方刘基2，占海华3，梁超锋2

陆俊,鲍聪,方刘基,等.再生PET塑料骨料对砂浆单轴受压性能的影响[J].混凝土与水泥制品,2022(1):95-99.

LU J,BAO C,FANG L J,et al.Effect of Recycled PET Plastic Aggregate on Uniaxial Compression Performance of Mortar[J].China Concrete and Cement Products,2022(1):95-99.

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1000

摘要：利用废弃PET塑料制备了再生PET塑料骨料（RPA），研究了RPA部分取代天然细骨料（0、10%、20%、30%、40%）对砂浆单轴受压性能的影响，并建立了掺RPA砂浆的单轴受压应力-应变本构关系。结果表明：随着RPA取代率的增加，试件的延性增加，应力-应变曲线上升段和下降段斜率逐渐降低，峰值应力和弹性模量逐渐降低；试件的峰值应变、极限应变和抗压韧性指数均随着RPA取代率的增加而增大；建立的掺RPA砂浆单轴受压本构方程计算结果与试验结果吻合较好。 Abstract: Recycled PET plastic aggregate(RPA) was prepared from waste PET plastics. The effect of RPA partially replacing natural fine aggregate (0, 10%, 20%, 30%, 40%) on the uniaxial compressive properties of mortar was studied, and the uniaxial compressive stress-strain constitutive relationship of mortar mixed with RPA was established. The results show that with the increase of RPA replacement rate, the ductility of the specimen increases, the slopes of the rising and falling sections of the stress-strain curve gradually decrease, and the peak stress and elastic modulus gradually decrease. The peak strain, ultimate strain and compressive toughness index increase with the increase of RPA replacement rate. The established constitutive equation of the mortar mixed with RPA under uniaxial compression is in good agreement with the experimental results.

英文名 : Effect of Recycled PET Plastic Aggregate on Uniaxial Compression Performance of Mortar

刊期 : 2022年第1期

关键词 : 再生PET塑料骨料；单轴受压；应力-应变曲线；峰值应力；抗压韧性指数；本构关系

Key words : Recycled PET plastic aggregate; Uniaxial compressive; Stress-strain curve; Peak stress; Compressive toughness index; Constitutive relationship

刊期 : 2022年第1期

DOI : 10.19761/j.1000-4637.2022.01.095.05

文章编号 :

基金项目 : 绍兴市科技创新计划项目（2018C30007、2019B22002）。

作者 : 陆俊1，鲍聪2，方刘基2，占海华3，梁超锋2

单位 : 1.浙江永坚新材料科技股份有限公司，浙江绍兴 312369；2.绍兴文理学院土木工程学院，浙江绍兴 312000；3.绍兴文理学院纺织服装学院，浙江绍兴 312000

陆俊1，鲍聪2，方刘基2，占海华3，梁超锋2

陆俊,鲍聪,方刘基,等.再生PET塑料骨料对砂浆单轴受压性能的影响[J].混凝土与水泥制品,2022(1):95-99.

LU J,BAO C,FANG L J,et al.Effect of Recycled PET Plastic Aggregate on Uniaxial Compression Performance of Mortar[J].China Concrete and Cement Products,2022(1):95-99.

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摘要

参数

结论

参考文献

引用本文

Abstract: Recycled PET plastic aggregate(RPA) was prepared from waste PET plastics. The effect of RPA partially replacing natural fine aggregate (0, 10%, 20%, 30%, 40%) on the uniaxial compressive properties of mortar was studied, and the uniaxial compressive stress-strain constitutive relationship of mortar mixed with RPA was established. The results show that with the increase of RPA replacement rate, the ductility of the specimen increases, the slopes of the rising and falling sections of the stress-strain curve gradually decrease, and the peak stress and elastic modulus gradually decrease. The peak strain, ultimate strain and compressive toughness index increase with the increase of RPA replacement rate. The established constitutive equation of the mortar mixed with RPA under uniaxial compression is in good agreement with the experimental results.

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再生PET塑料骨料对砂浆单轴受压性能的影响

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