• 2021-12-10 11:20:55

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...

• measurement accuracy
• slump of concrete
• sand and gravel aggregate

• 2021-12-17 16:37:22

(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...

• subbase concrete
• rolling compacted concrete(RCC)
• cement aggregate soil

• 2022-01-13 14:43:08

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...

• crushed sand
• manufacturer sand
• workability of concrete

• 2022-03-15 11:18:35

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...

• machine-made sand
• washing sand
• recycled aggregate