Sulfate content on the early strength of fly ash grouting material which playing an important role? - Cement grouting material

Early curtain grouting materials and grouting material manufacturer early strength grouting material price as clinker, aggregate, and plus the seam an agent in the process of the production and use of sulfate composition change, early strength of fly ash cement grouting materials by sulfate as epoxy grouting LiaoChang home more and more common. Through the low calcium and low sulfur coal fly ash - Adulteration soluble sodium sulfate change sulfate content in cement system, under different sulfate content of cement The mechanical properties of fly ash system is studied.       The results show that the cement slurry Fly ash system best sulfate content is about 3%. In general, 15%, the dosage of fly ash exosmosis sulfate is not easy to more than 1. 5%; 30% - 50% when the dosage of fly ash, and the seepage quantity of sulfate in 1. 5% - 3% before, and more than 60% of the dosage of fly ash system of Chinese and foreign infiltration sulfate not greater than 3%. Within the scope of the reasonable dosage, with sodium sulfate content increases, the system of flexural strength increase is larger than compressive strength increase.     Winter early strength grouting material supply; Fly ash as an important representative of industrial waste recycling use building materials, in the early strength cement grouting material has received a lot of research and utilization, has achieved remarkable social, economic and environmental benefits. In the early strength of fly ash in cement grouting material has significant ash reaction characteristics, good form effect, micro aggregate filling effect, etc. , according to their different effects can be used for different occasions.     With the progress of using the technology of fly ash and fly ash demand changes, there are a lot of the so-called 'grey' without sorting the original state of abandoned coal fly ash, the application of this kind of fly ash will have huge impetus to the development of technology of fly ash.     The early strength of fly ash in cement grouting material used in the process, inevitably come into contact with sulfate. The sulfate which include clinker grinding when the additive of dihydrate gypsum, including material mixing process introduction of sulphate in water, also including the introduce of sulfate cement clinker sintering process. With the use of high sulphur coal, the clinker in sulfate more hasten is increased, by aggregate, plus the seam an agent, of course, including the introduction of sulfate.     Sulfate sort is more, the existence of sulfate - fly ash The influence of early strength cement grouting material is worthy of study, because this kind of fly ash ash - Under the action of sulfate cement material, the volcanic activity may get further. Study shows that the sulfate in solution in cement clinker, the speed of the hydration reaction is a grouting material multiple often dry fast, 24 h basic can complete reaction, can therefore be regarded as a soluble sulfate.