GE DS200DMCBG1AKG

Description

GE DS200DMCBG1AKG

GE DS200DMCBG1AKG

You can add less or no early strength agents or antifreeze. Winter construction or concrete projects that require early use often use early strength and antifreeze admixtures. These admixtures generally contain chloride ions and alkalis, which are detrimental to the durability of concrete. Some countries have rarely or no longer used these admixtures, and the use of high early strength cement and other admixtures that improve the physical properties of concrete can fully meet the requirements. 4) Early strength is high, and formwork can be removed and put into use early to improve the early mechanical collision resistance, carbonization resistance, frost resistance, and sand resistance of concrete. Therefore, the issue of low early strength of cement in China should receive greater attention. 2.3 Failure to Control Cement Particle Gradation: China’s cement grinding fineness is generally coarse, with a low content of fine powder. We have not actively controlled the cement particle grading and the particle grading of each component in the cement. The fine powder content and particle size distribution of cement mainly affect the workability, water demand, early strength, strength improvement rate, compactness, cracking susceptibility, and durability of concrete slurry. Fine powder can improve early strength, compactness, and mortar fluidity, but it is not conducive to dry shrinkage cracks. Narrow particle distribution and high water demand are detrimental to workability. At present, the cement produced by German cement factories has a residue of less than 1% on the 4900 mesh sieve, which is generally 0%. The specific surface area of the road cement that needs to be roughly ground should not exceed 350m2/kg, with a specific surface area of over 350m2/kg< sixteen μ The fine powder content of m is generally greater than 50%

620-0073C
CC-TCNT01
CC-TAON01
CC-TAIN01
TK-FTEB01
CC-PAIH02
51307089-175
CC-PDOD51
CC-PAIX01
51405047-175
CC-PCF901
CC-IP0101