All posts by: gkmill

Along with the acceleration of industrialization and urbanization, construction industry is rapidly developing. However, construction waste is increasing day by day, which occupied 1/3 of total municipal waste. At present, construction waste handling is an important task in urbanization. Most of the countries bury the waste to the earth, which may cause serious hazard. First, […]

Grain slag, is made by cooling the molten condition blast furnace slag in water. The processing methods are slag pool water quenching and stoke hole water quenching. Grain slag is a kind of industrial solid waste, but in many countries, it was applied in admixture material producing. Grain slag can be made in to high […]

1.Increase stability of plastic product size Calcium carbonate powder plays a framework effect in plastic product, which can increase plastic stability. 2.Increase plastic product hardness and rigidity Along with the increasing of calcium carbonate powder, the hardness of plastic product will also increase. 3.Increase plastic process-ability Added with calcium carbonate powder, the plastic will have […]

In recent years, along with the infrastructure construction, the cement industry is growing rapidly. The new dry process cement producing has advantages of high capacity, good quality, low heat rate, high efficiency, low energy consumption and low pollution, it has become the main current of cement producing. Innovation of technology and expansion of scale largely […]

The vertical shaft impact crusher consists of rotor, crushing cavity, motor, transmission device, main shaft system, lubrication system and electronic control system. In order to maintain the good performance of the sand making machine, it is necessary to do a good job of daily maintenance, find and deal with faults in time. 1. Lubrication The […]

The main indicators to measure the quality of sand are: mud content, sand particle size, fineness modulus and sand hardness. 1. Mud content: According to the “Quality Standards and Inspection Methods of Sand for Ordinary Concrete” JGJ52-2011: The limit of mud content in sand varies according to the concrete strength grade. The mud content in […]