摘要
为了研究在砂浆中加入回收的废弃塑料作为细骨料的可能性,使用聚丙烯(PP)塑料等体积替代砂子(取代率0%、20%、40%和60%),并采用3种不同粒径塑料,研究了大掺量塑料砂浆的物理和力学性能。结果表明,就材料密度和力学强度而言,加入塑料的砂浆具有轻质的特性和可接受的强度;掺入较小粒径塑料的砂浆有更高的强度;塑料砂浆强度随塑料掺量的增加近似线性减小。掺入塑料可改善砂浆的延性,提高砂浆韧性,在工程中有一定的意义,且符合环保的理念。
In order to study the possibility of adding recycled plastic as fine aggregate in the mortar,Polypropylene(PP)plastic was used to replace the same volume of sand(replacement rate:0,20%,40% and 60%)and three different sizes of particles were used.The physical properties and mechanical properties of mixing plastic mortar were studied.The test results show that considering the material density and mechanical strength,the mortar adding with plastic has light characteristics and acceptable strength.The mortar with small particle size of plastic has higher strength.And the strength of plastic mortar could decrease linearly with the content of plastic.The mixing of plastic could improve the ductility and toughness of mortar.It has certain significance in engineering and could satisfy with the concept of environmental protection.
作者
陈海明
朱云涛
张东磊
徐阳晨
CHEN Hai-ming;ZHU Yun-tao;ZHANG Dong-lei;XU Yang-chen(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China;Engineering Research Center of Underground Mine Construction,Ministry of Education,Anhui University of Science and Technology,Huainan 232001,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2019年第2期134-138,169,共6页
China Plastics Industry
基金
国家自然科学基金资助项目(41440018)
国家自然科学基金海外及港澳学者合作研究基金资助项目(51728201)
关键词
塑料砂浆
聚丙烯塑料
弯曲强度
压缩强度
延性
Plastic Mortar
Polypropylene Plastic
Flexural Strength
Compressive Strength
Ductility