• 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

• 2022-05-17 17:07:45

Case When a concrete company was supplying the basement of a construction site, due to the unfamiliar business level of the batching plant operator the tester wrote the concrete mixing design and handed it over to the operator for input. He went to the concrete laboratory to play mobile games, and the operator mistakenly input the cement. The fly ash was used as cement. The problem was discovered ...

• batching plant operator
• concrete mixing design
• concrete laboratory

• 2022-05-23 17:37:19

The correct navigation of large ships is inseparable from the captain's steering, and the smooth operation of the batching plant is also inseparable from the correct implementation of the operators. In order to ensure the normal operation of the concrete mixing plant, the operator shall do a rigorous inspection before work: 1. Check the transmission, moving parts, bin door, bucket door and track i...

• batching plant
• concrete mixing plant
• concrete batching plant

• 2022-06-14 16:50:40

Causes of concrete segregation The reasons for concrete segregation may be improper pouring and vibrating, the maximum particle size of aggregate is too large, the proportion of coarse aggregate is too high, the content of cementitious material and fine aggregate is too low, and the density of coarse aggregate is higher than that of fine aggregate. Or the ready-mixed concrete is too dry or too thi...

• concrete segregation
• ready-mixed concrete