Different strength grade of prestressed pipe pressure slurry aggregate method choice

Prestressed pipe pressure slurry prestressed pipe pressure prestressed pipe pressure slurry paste manufacturer price note: 1. Class 1 should be used for strength grade is greater than the C60 prestressed pipe pressure slurry; Ⅱ class should be used for strength grade is C30 ~ C60 and concrete with antifreeze, permeability, or other requirements; Ⅲ class should be used for less than C30 strength grade prestressed pipe pressure slurry. 2. In the coarse aggregate should not be mixed with grass roots, leaves, branches, plastics, coal, slag and other sundry. 3. The compressive strength of the rock besides should meet the requirements in the table, the compressive strength and the ratio of the pulp strength grade pressure of the prestressed pipe shall be not less than 1. 5. Rock strength, first of all, should be provided by the production units, the project can be used in crushing value indexes for quality control. 4. When the coarse aggregate in granular sulfate or sulfur impurities, should be special inspection, after the confirmation can satisfy the requirement of the durability of prestressed concrete pipe pressure slurry, just can use. 5. Using broken pebble into gravel, should have two or more broken, and the broken surface should not be less than 70%.