Formula of filling concrete for composite pipe fitting

Abstract

The invention relates to a filler for a composite pipe fitting, in particular to a formula of filling concrete for the composite pipe fitting. The coating is characterized by comprising adaptive metal powder, lead powder, calcium carbonate powder, cement, an organic binder, an antirust agent, a thickening agent, an anti-slip agent and water. The matching ratio of the adaptive metal powder, the lead powder, the calcium carbonate powder, the cement, the organic binding agent, the antirust agent, the thickening agent, the anti-slip agent and the water is as follows in parts by mass: 45 to 62 parts of the adaptive metal powder, 10 to 28 parts of the lead powder, 5 to 13 parts of the calcium carbonate powder, 20 to 36 parts of the cement, 5 to 13 parts of the organic binding agent, 3 to 6.5 parts of the antirust agent, 0.03 to 0.07 part of the thickening agent, 0.05 to 0.15 part of the anti-slip agent and 20 to 33 parts of the water; the sealing performance and the service life of the composite pipe fitting can be stably kept for a long time, smoothness of a water conveying pipeline is guaranteed, potential safety hazards are reduced, the pipeline maintenance cost is reduced, the water conveying efficiency is improved, and the beneficial effects of reducing environmental pollution and saving energy are achieved.

Description

technical field [0001] The invention relates to a filler for composite pipe fittings, in particular to a filling concrete formula for composite pipe fittings. Background technique [0002] Filling concrete for composite pipe fittings is a special filler used to fill the gap between the inner pipe and the outer pipe of the composite pipe fittings. The composite pipe fittings have a certain anti-compression and anti-leakage effect. [0003] The filling concrete for the composite pipe fittings in the prior art is made of cement concrete and glue. Due to the different thermal expansion and cold shrinkage characteristics of the inner pipe and the outer pipe of the cement concrete and the composite pipe fittings, especially the composite pipe fittings products pass through winter and summer. After the climatic change of the composite pipe fittings, there will be gaps between the inner and outer pipes of the composite pipe fittings and the cement concrete, which will seriously aff...

AI Technical Summary

Problems solved by technology

[0003] The filling concrete for composite pipe fittings in the prior art is made of cement concrete plus glue. Due to the difference in thermal expansion and contraction characteristics of the inner and outer pipes of cement concrete and composite pipe fittings, especially the composite pipe fittings products have passed through winter and summer. After the climate changes, there will be gaps between the inner pipe, outer pipe and cement concrete of the composite pipe fittings, which will seriously affect the compressive performance and leak-proof performance of the composite pipe fittings.