Concrete for coating pipeline
A concrete and coating technology, applied in the field of concrete, can solve the problems of high water ash, unsatisfactory, unsuitable for pipeline coating weight, etc., achieves broad application prospects, maintains stability, and reduces material costs.
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[0021] Example 1:
[0022] 1. The concrete components for pipeline coating are as follows:
[0023] The weight ratio of heavy aggregate: sand: ordinary portland cement: water is 31:43.88:20:5.12.
[0024] Mesh size
[0025] Mesh size
[0026] The cement is ordinary Portland cement P·O 42.5, the content of tricalcium aluminate is 6.3%, and the content of alkali is 0.46%;
[0027] 2. After the components are combined, the concrete is formed by mechanical mixing, the measured water-cement ratio is 0.26, and the concrete density of the counterweight coating specimen is 2428Kg / m 3 ;
Example Embodiment
[0028] Example 2:
[0029] 1. The concrete components for pipeline coating are as follows:
[0030] The weight ratio of heavy aggregate: sand: ordinary portland cement: water is 36:33:25:6.
[0031] Mesh size
[0032] Mesh size
[0033] The cement is ordinary Portland cement P·O 42.5, the content of tricalcium aluminate is 6.3%, and the content of alkali is 0.46%;
[0034] 2. After the components are combined, the concrete is formed by mechanical mixing, the measured water-cement ratio is 0.24, and the concrete density of the counterweight coating specimen is 2565Kg / m 3 ;
Example Embodiment
[0035] Example 3:
[0036] 1. The concrete components for pipeline coating are as follows:
[0037] Heavy aggregate: sand: ordinary Portland cement: water is mixed in the weight percentage of 46.66:25.18:22:6.16.
[0038] Mesh size
[0039] Mesh size
[0040] The cement is Portland cement P·II42.5R, the content of tricalcium aluminate is 6.8%, and the content of alkali is 0.53%;
[0041] 2. After the components are combined, the concrete is formed by mechanical mixing, the measured water-cement ratio is 0.28, and the concrete density of the counterweight coating specimen is 2750Kg / m 3 ;
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