硅酸盐通报2017，Vol.36Issue(9)：2894-2899,6.
聚合物水泥路面填缝材料变形性能研究
Deformation Property of Polymer Cement Pavement Joint Sealant
摘要
Abstract
Styrene-acrylic latex , cement , packing and accessory ingredient were employed to prepare Polymer cement pavement joint sealant ( PCJS) .The influence rules of the three factors:liquid to powder ratio, cement ratio and packing type to cohesiveness at maintained extension , peak strain and elongation at break were investigated through the method of orthogonal experiment .It is indicated that with the increase of liquid to powder ratio and cement ratio , the cohesiveness at maintained extension of PCJS is gradually enhanced .Talcum powder and heavy calcium carbonate both can improve its cohesiveness at maintained extension Liquid to powder ratio is the main factor influencing the peak strain and the elongation at break of PCJS .With the increase of liquid to powder ratio , peak strain and elongation at break are increased .With the increase of cement ratio , peak strain first decreased and then increased , elongation at break has an increased tendency .The peak strain and the elongation at break of PCJS are larger when the packing is heavy calcium .For the peak strain index , the liquid to powder ratio affect it most , then and the cement ratio the packing type .For the elongation at break index , the liquid to powder ratio affect it most , then the packing type and the cement ratio .The deformation property of PCJS is optimum when the liquid to powder ratio is 1:0 .45 , the cement ratio is 60% and the packing is heavy calcium.关键词
填缝材料/苯丙乳液/正交试验/定伸粘结性/峰值应变/断裂伸长率Key words
joint sealant/styrene-acrylic latex/orthogonal experiment/cohesiveness at maintained分类
建筑与水利引用本文复制引用
彭光,许金余,任韦波..聚合物水泥路面填缝材料变形性能研究[J].硅酸盐通报,2017,36(9):2894-2899,6.基金项目
国家自然科学基金(51378497) （51378497）
陕西省青年科技新星项目(KJXX-81) （KJXX-81）
