Hefei, Jinan grouting material - water grouting material applications 
 The grouting material of water also known as the puree grout, is a shape, without any decoration of the grouting material, the direct use of the natural color is watered slurry finishes require grouting material, smooth surface, uniform color, no collision damage and water pollution, pull the bolt and set construction joints should be neat appearance, and does not allow the quality defects of the ordinary grouting material. 
 Extensive use of the water grout, Germany and Japan after World War II. After the war undone, the construction of part of the grouting material eliminating the need for plastering, decorative processes directly put into use. By the 1960s, more and more water grouting material appeared in Europe, North America and other developed countries. In recent years, China has also appeared in many Shimizu grouting material engineering. Zhengzhou International Convention and Exhibition Center, Beijing Lenovo Science and Technology Building, and some large-scale bridge projects. 
 Factors Affecting the Quality of water grouting material appearance 
 Grouting material composed of materials 
 1, the main raw material for cement - cement as a grouting material, the alkali content of different varieties of cement, cement plant house production of cement grouting material appearance has not. 
 In order to guarantee the quality of water grout appearance, must be selected from the same manufacturer, same batch, the same type of cement. 
 Fly ash - fly ash appearance quality of the grouting material: fly ash and fly ash varieties. In general, the fly ash carbon content and its color is dark gray; low carbon content was fly ash, the color was gray. Content the greater the deeper the color of the grout; light color cement fly ash replaced by the increase of the amount of cement, concrete color lighter. 
 Water grout, Hefei, grouting material, Jinan grouting material with fly ash, the same manufacturer should be used whenever possible, at the same time, the use of fly ash collected in the same process. 
 3, additives - admixture, though few, but the appearance quality of the water grout, Hefei, grouting material, Jinan grouting material. 
 Naphthalene superplasticizer mixed concrete, the concrete surface is prone to a number of macro-pores. Carboxylic acid admixture mixed concrete, the grout material and smooth surface, very few pores. Some admixture mixed concrete, but also caused the concrete surface is the obvious color difference, especially when grouting material bleeding, leaving visible traces of water waves in the surface of the grouting material, the influence of grouting material appearance. 
 To ensure water grouting material has a good appearance quality, as far as possible to choose the gas content of the polycarboxylic acid admixture. This new type of high-performance concrete admixtures, not only the concrete surface pores can greatly reduce (with more than appropriate, make concrete surface, no bubbles), and the concrete smooth surface, no color. Not all of the carboxylic acid admixture can be made water grouting material to get a good quality of appearance. As the production process, the grafting of different genes, different grafting technique, and performance of a polycarboxylic acid admixtures. The the Polycarboxylic admixture containing large gas the same make the grouting material, the Hefei grouting material left on the surface of many large holes. 
 Organic synthetic fibers are fibers mixed grout compound can effectively inhibit the generation and development of concrete at early age plastic shrinkage cracks, reducing the shrinkage cracks of the grout. Experimental research shows that adulteration 0.9kg/m3PP fibers in the grouting compound, relative reduction of the holes of the grouting material surface, the smaller pore size. Fiber again to some extent, reduction and refinement within the grouting material and the surface of the hole, to improve the surface quality of the grouting material. 
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