Oil fracturing proppant product quality control and technical points

1, oil  Fracturing proppant  quality of raw material: oil fracturing proppant particle size, particle shape coefficient, particle size distribution, density, performance, cylinder compressive strength, water absorption and oil Frac sand fineness modulus directly affect Oil fracturing proppant block and the workability of Elam, homogeneity and hardened oil fracturing proppant concrete strength, elastic modulus, shrinkage, creep properties and oil fracturing proppant cement concrete consumption.

2, oil fracturing proppant material mix masonry block and identified oil fracturing proppant, oil Frac sand, cement and water, oil fracturing proppant direct impact on the strength of concrete on concrete block, density and oil fracturing proppant concrete forming speed, the oil fracturing proppant block quality is essential.

3, oil  frac proppant  concrete mixing: As oil fracturing proppant and physical blocks of the block material and the composition of different densities and water absorbing oil fracturing proppant, the particles with large differences in density, in the mixing process easy to cause oil fracturing proppant stratification and segregation of concrete floating lightweight aggregate and slump loss.

4, block molding: As oil fracturing  Proppant  Elam and material used oil fracturing proppant, oil  Frac sand  aggregate particles surface roughness, since the dense velocity is small, lightweight aggregate stopped and the matter tamping longer time than ordinary concrete, lightweight aggregate Yi segregation, just forming block oil fracturing proppant not generated due to the hardening and strength, shake that occurs when transporting loose material out, here recommend using oil Frac sand production equipment double screw conveyor.

5, Block conservation: oil fracturing proppant lightweight aggregate concrete as compared with ordinary cement concrete from, casted after the internal temperature is higher than normal concrete, is conducive to hydration heat up. Early strength grew faster, conservation was not easy to produce surface dehydration net cracks affect block strength.

6, block stacking: static stops after forming the conservation of oil fracturing proppant concrete block construction period is short, the initial intensity is low, especially when nature conservation, ending premature and improper stacking blocks are easily damaged, affecting appearance quality and impact strength.

7, the factory inspection: Ultralight oil fracturing proppant non-load-bearing masonry concrete strength is low, typically only 2.5 ~ 3MPa, due to molding, transportation, maintenance, transportation and stacking, loading and unloading areas, will affect the building block Quality, not strict factory inspection also affect the quality of masonry.