摘要
通过外加剂的匀质性试验、胶砂强度与收缩性能试验以及混凝土性能试验,对聚羧酸系减水剂与萘系减水剂的性能进行了对比。研究表明,与萘系减水剂相比,聚羧酸系减水剂在低掺量的条件下,不但有着更高的减水率,而且保塑能力强;所配制的胶砂及混凝土的强度增长显著,低收缩、体积稳定性好。该系列减水剂在厦门嵩屿2#泊位码头胸墙面层的混凝土工程中的应用取得了良好的效果。聚羧酸系减水剂特别适合高强混凝土、高性能混凝土、自密实混凝土、清水混凝土、大体积混凝土以及预制混凝土工程。
This article takes the comparison of polycarboxylate-type and naphthalene-type superplasticizer through the homogeneous property of the admixtures, the mortar strength and the contraction performance and the concretes performance tests. The results show that compared with the naphthalene-type superplasticizer, polycarboxylate-type superplasticizer not only has higher reduces in the water rate, moreover better maintains in the plasticity ability. The mortar and concrete mixed with the polycarboxylate-type superplasticizer have many virtues, such as significant growth in strength, low shrinkage, good volume stability. This series water reducing agent has made the good progress in concretes project＇ s application of the Xiamen Songyu 2# berth wharf breast transmitter surface layer. The polycarboxylate-type superplasticizer is especially to be chose in the high strength concrete, high performance concrete, self compacting concrete, clear water concrete, mass concrete as well as precast concrete projects.
出处
《福建建材》
2008年第6期9-12,共4页
Fujian Building Materials
关键词
聚羧酸系减水剂
萘系减水剂
混凝土
性能
polycarboxylate-type superplasticizer： naphthalene-type superplasticizer： concrete： performance
