the mix gradation control: Mixture Grading directly

(2) the mix gradation control: Mixture Grading directly affects the performance of the road, if the mix gradation unreasonable, the road will be the porosity is too large, too small, flooding, track and some other diseases, reducing life of the road, seriously affecting the quality of the project. So the mix gradation control is one of the skills you must have operator. 2013 sell js portable twin-shaft concrete mixer Factors affecting mixture gradation are: changes in raw material particle size, mixing station screen change, measurement error range. Raw material particle size directly influences the mix of gradation, when there is a change of raw materials was found, with the laboratory operator should fine-tune the production mix. An important factor in the thermal material mixing station screen changes affecting mix gradation, if clogging, hot material screening insufficient gradation will become thin, if the screen broken, damaged, missing material, wear overrun , will mix gradation thicker; mixing station measurement error, but also directly affects the grading, if the measurement error range adjustment too, will make the production mix and the target mix large deviations, seriously affecting the quality of the mix. If the measurement error range adjustment is too small, the measurement time will increase the yield, but also to the measurement frequently overrun, and stirring the normal work station. In short operator should pay close attention to changes in raw materials, always check the screen, identify problems promptly resolved, according to the mixing plant characteristics and other factors, foton auman 8×4 15cbm twin shaft concrete mixer will be adjusted to the best measurement range. Consideration of other factors carefully graded to ensure mix mixture.        (3) The aggregate ratio of mixture control: optimum asphalt asphalt mixture ratio, the content of graded mineral aggregate and powder of the decision, it is essential to ensure the strength and performance of pavement, asphalt with excessive , so that the road is too small will produce different diseases.      Therefore, strict control of the amount of asphalt is an important part of production control. In production operator should pay attention to the following aspects:     Adjusted operating margin of error as much as possible when measured small asphalt, asphalt to be very accurate metering; plus the amount of powder is also an important factor affecting optimum asphalt ratio, so for metering powder, but also carefully controlled; dust content of fine aggregate according to, reasonable adjustment of fan opening lead, so the mix of dust content within the design range.     In modern construction, must have advanced equipment to ensure the quality of the project, but also must have good operating techniques to enable the device to its full advantage. First-class equipment, good sale js500 concrete cement mixer with pump first-class operating level, first-class management, have first-class product, first-class quality. In order to ensure the project on time, durability, successfully completed.