(中国建筑第八工程局有限公司工程研究院， 上海 200122)

［摘要］对3D打印建筑材料层间粘结性能进行了测试，包括3个3D打印试件的粘结抗拉强度试验和3个3D打印试件的粘结剪切强度试验。着重分析了3D打印建筑材料层间粘结的破坏模式、破坏过程与破坏形态。分析结果表明，3D打印建筑材料存在层间粘结薄弱层，破坏时均发生在粘结层部位，其轴心抗拉强度为0-74N/mm2；剪切强度测试时未发生剪切破坏，得到试件破坏时的弯曲抗拉强度平均值为0-88N/mm2。

［关键词］3D打印建筑材料； 层间粘结性能； 抗拉强度； 弯曲强度； 剪切强度

中图分类号：TU399文献标识码：A文章编号：1002-848X(2017)04-0049-04

Experimental study on interlayer bonding property of 3D print building material

Ge Jie, Ma Rongquan, Miao Dongmei, Bai Jie

(Engineering Research Institute of China Construction Eighth Engineering Division  Co.,  Ltd.,  Shanghai 200122, China)

Abstract:Interlayer bonding property of 3D print building material was tested, including 3 bonding tensile strength tests on 3D print specimens and 3 bonding shear strength tests on 3D print specimens. The failure modes, processes and forms of interlayer bonding property of 3D print building materials were emphatically analyzed. Analysis results indicate that there are interlayer bonding weak layers in the 3D print building materials, and specimen failure occurs in the bonding layer part with average axial tensile strength of 0-74N/mm2. The shear failure does not occur in shear strength test and average bending tensile strength of 3D print building materials is 0-88N/mm2 when specimen is failed.

Keywords:3D print building material; interlayer bonding property; tensile strength; bending strength; shear strength

*中国工程院咨询研究项目（2015-XY-17）。

作者简介：葛杰，博士，高级工程师，一级注册结构工程师，Email: gj3258899@126.com。