Supply Linyi secondary grouting material - pursuit - Qi Du cards, impregnable

 Linyi grout | Qi Du brand, trusted quality of raw materials and fluctuations in the quality of concrete grout and construction technology have a significant impact, in order to ensure the quality of concrete grout, in the production process, must be of concrete grout raw materials for quality testing, all in compliance with the technical performance indicators before the application. Aggregates hazardous substances exceeding the limits prescribed norms, which would impede the cement hydration, reducing the strength of concrete grout, weakening aggregate and cement bond strength, and chemical reaction of cement hydration products and the expansion of harmful substances. If the clay, silt, sand content of more than 3%, in the gravel, pebbles, more than 2%, then these will be in fine particulate material wrapped layer formed on the surface of aggregates, aggregates and cement impede bonding, also increased the mixing substance water. Concrete grout aggregate moisture content, clay content and gravel containing powder volume would grout mix concrete impact, leading to concrete grouting material intensity is too large fluctuations main reason. In concrete grout production process, quality control of raw materials, in addition to regular testing, but also requires quality control personnel keep abreast of changes in the content of the law, and to develop appropriate countermeasures. According to the determination of the moisture content of the sand grout mix concrete adjust the actual amount of water and aggregates. For the same intensity level of variation between the cement activity, mortar strength test by the rapid determination, subject to adjustment in accordance with cement concrete activity of grout mix. Aggregate concrete grouting compound is commonly referred to as broken (eggs) stone, sand and other fine to coarse aggregate. Only in ensuring that their quality meets the requirements of the case, the quality of concrete grout can be guaranteed. However, most of the construction site of the mixing conditions and laboratory mixing conditions can not be compared, especially the quality of personnel. If only concerned about feeding calculations ignore the material moisture content, clay content of the case, virtually to the design with the feeding amount to bring greater than the error, thus affecting the quality of the concrete grout, it is necessary to pre-feeding pilot testing of raw materials, in order to determine a reasonable feeding amount. Updated: June 20, 2013