Sand is an integral part of concrete. It is generally called fine aggregate, which refers to rock particles with a particle size of less than 5mm. It can be generally divided into natural sand and artificial sand. At present, common sands are: (1) Manufactured sand; (2) River sand (generally used for sand designated for key projects, and ordinary concrete is generally not used due to high price an...
Crushed sand (Manufactured sand) contains stone ash which has two effects on the working performance of concrete. On the one hand, the increase of stone ash content will lead to the increase of water demand of concrete because stone ash will adsorb certain water and additives; On the other hand, the manufactured sand with poor grading is easy to cause concrete segregation and bleeding. Appropriate...
1. the quality of central mix batch plant. If you want to produce high-quality concrete, you must choose good quality production equipment. Users should focus on the advanced nature, reliability, excellence and versatility of the equipment, and judge whether the concrete equipment is excellent based on these conditions. When purchasing concrete batching plant equipment, if possible, you can v...
How to improve the production efficiency of ready-mixed concrete batching plant to meet the needs of construction engineering? Feeding time, mixing time and discharging time are the three time nodes that affect the production efficiency of concrete batching plant. 1.The user shall regularly check the butterfly valve and relevant electrical components during use to ensure smooth operation of the me...
(1) Advantages a. Subbase concrete has high strength and good stability; b. Subbase concrete has good integrity and high bearing capacity; c. The strength of subbase concrete can be adjusted, and the 7d compressive strength can be less than 1.0MPa or more than 10MPa of plain concrete; d. Almost all kinds of soil can be stabilized with cement; e. Rolling compacted concrete (RCC) can be mixed in pla...
The influence of operation on concrete quality is mainly in the measurement and mixing process. During production, pay attention to the measurement error, the adjustment of overshoot and the grasp of residual quantity in the feeding process to ensure that the measurement accuracy meets the requirements. Special attention should be paid to the following aspects: External materials have a great impa...
About the environmental protection of concrete mixing plant, it is first required to produce green concrete. At the same time, various emissions (gas, liquid and solid) and noise in the production process shall meet the national standards. The environmental protection standard of concrete mixing plant shall be reflected from the following six aspects: Six standards for environmental protection of ...
Ji: it's getting colder and colder! When people wear more clothes to keep out the cold, they always drink to keep out the cold. It's better to "drink" some "wine" when mixing concrete. Tong: antifreeze is used for concrete antifreeze, not drinking. Ji: drinking is an analogy. In fact, alcohol is added as the main antifreeze component. Tong: so is it "Kouzijiao" or "Erguotou"? Ji: neither. It mainl...
Green environmental protection solution for concrete mixing plant According to the environmental protection demand and actual situation of the mixing plant, green environmental protection solution for concrete mixing plant mainly starts from five aspects: 1. Engineering vehicle cleaning A car washing machine is set at the gate of the mixing plant to wash the incoming and outgoing vehicles 360 degr...
Part 1. Lightning protection status of mixing plant The lightning protection measures of concrete mixing plant are mainly to prevent the induction of lightning surge along the external line. With the electronization and high integration of measurement mode of concrete mixing plant, real-time intelligence of computer control, remote network control and informatization of Internet access, a perfect ...
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