外加剂与水泥适应性的改善措施（Measures to improve the adaptability of admixture and cement）.docVIP

外加剂与水泥适应性的改善措施（Measures to improve the adaptability of admixture and cement） Concrete admixture has become an important group of modern concrete preparation technology and construction technology cannot do without the application of various additives, it is one of the important measures for realizing high performance and green of the concrete material. However, concrete admixture and cement in sometimes cant adapt to, and to some extent influence the application effect and the performance of concrete admixtures. I have on the compatibility between cement and concrete definition are described that?, in accordance with the technical specifications for application of concrete admixture, the inspection according to relevant standards of some additive can be used according to the provisions of the variety of cement admixture, which mixed with the cement concrete or mortar to produce the desired effect, think the cement and the admixture is suitable; instead, if it did not produce the desired effect, the cement and admixture can not adapt to this. In order to adapt to the situation of cement and admixture to find out Shanghai and Jiangsu, Zhejiang, Guangdong, Hunan and other regions, for reasons of inelasticity phenomenon, put forward some effective measures, the benefits of water reduction of the area of admixture (including ordinary water reducing agent, superplasticizer, superplasticizer and retarding superplasticizer, ordinary pump delivery agent, efficient pumping agent and control the slump loss of concrete admixtures) launched a series of experimental study and adaptability of cement. 1, concrete admixture and cement adaptability influence factor and its function rule There are many factors affecting the effect of additives (see Table 1). These factors are often intertwined with each other in order to increase the use of additives Influence by effect. The influences of various factors on the adaptability of concrete admixtures to cement and their mechanism analysis