用于港工预应力混凝土大管桩HLC-LZ建筑结构胶的研究  

The research of the HLC-LZ building structural adhesive used in port engineering large diameter post tensioned prestress concrete cylinder pile

作　　者：王冬[1,2,3] 祝烨然[1,2,3] 石明建 陈国新[1,2,3] 

机构地区：[1]南京水利科学研究院,江苏南京211161 [2]南京瑞迪高新技术有限公司,江苏南京211161 [3]南京市水工新材料工程技术研究中心,江苏南京210024

出　　处：《新型建筑材料》2014年第6期22-24,63,共4页New Building Materials

摘　　要：选用816环氧树脂、复合改性固化剂、助剂、填料和改性天然植物纤维,开发出适用于港工预应力混凝土大管桩梁体分段预制拼装中使用的HLC-LZ建筑结构胶。试验结果表明,HLC-LZ建筑结构胶涂层厚度为4mm时无流挂,25℃适用期为70min,1 d、14 d抗压强度分别为44.4 MPa、91.9 MPa,14 d正拉粘结强度为14.2 MPa,14 d粘结抗拉强度为39.4 MPa,性能符合JTS 167-6—2011《港口工程后张法预应力混凝土大管桩设计与施工规程》中对混凝土大管桩梁干接头粘结剂的性能要求。Chooses 816 epoxy, composite modified curing agents, additives, packing and modified natural plant fiber to develop the HLC-LZ building structural adhesive, suitable for port engineering large diameter post tensioned prestress concrete cylinder pile in the section prestressed assembly in use. The experimental results showed that：when the thickness of HLC-LZ building structural adhesive coating is more than 4mm, it has no flow hang, the applicable time under 25 ℃ is 70rain, 1 d compressive strength is 44.4 MPa, 14d compressive strength is 91.1 MPa, 14 d of the bonding strength is 14.2 MPa, 14 d of bonding tensile strength is 39.4 MPa, performance of HLC-LZ meets the performance requirements of dry joint adhesive in standard JTS 167-6-2011＂Port engineering technical code of design and construction for large diameter post tensioned prestress concrete cylinder pile＂.

关 键 词：港工预应力混凝土 大管桩 环氧结构胶 

分 类 号：TU528.042[建筑科学—建筑技术科学]