HLC低碱泵送剂在南水北调中线天津干线工程中的应用研究  

Study of HLC low-alkali pumping agent in the projects of Tianjin line of “South water to North （ Middle line）”

作　　者：蔡明[1] 祝烨然[1] 唐修生[1] 陈国新[1] 王冬[1] 

机构地区：[1]南京水利科学研究院瑞迪高新技术公司,江苏南京210024

出　　处：《中国包装科技博览：混凝土技术》2011年第2期49-53,共5页China Science and Technology Review

摘　　要：南水北调中线天津干线工程中存在着骨料碱活性问题，混凝土配台比应采用各种低碱型原材料。本文研究了HLC低碱泵送剂对当地骨料碱话性的影响，并对新拌混凝土的工作性能及硬化混凝土的力学，耐久性等问题展开应用研究。结果表明，HLC低碱泉送剂可有效改善混凝土的和易性，抑制混凝土碱骨料反应，各项性能指标都能满足设计要求和工程技术要求，HLC低碱泵送剂可在本工程中推广应用。There are many problems of alkali reactivity of aggregate existing in the projects of Tianjin line of ＂South water to North （ Middle line ）＂ . Raw materials of low alkali should be adopted in the design of mix proportion of concrete. The influence of HLC low-alkali pumping agent on the alkali reactivity of aggregate was studied in this paper. The influence on the workability of ready-mixed concrete and the strength and durability of hardened concrete were also investigated. The results showed that I-ILC low-alkali pumping agent could improve the workability of concrete, inhibit the alkali-aggregate reaction of concrete. The performance of concrete can satisfied the requirement of design and engineering technology. And HLC low-alkali pumping agent can be widely applied in this engineering.

关 键 词：HLC低碱泵送剂 南水北调中线天津干线 骨料碱活性 耐久性 

分 类 号：TU528.042[建筑科学—建筑技术科学]