A cement-based high-performance anchoring agent

Abstract

The invention relates to a cement-based high-performance anchoring agent. The anchoring agent is uniformly prepared by mixing and stirring the following raw materials in parts by weight: 350-440 parts of sulphoaluminate cement, 250-400 parts of ordinary Portland cement, 5~10 parts of special water reducing agent, 170~285 parts of sand, 15~25 parts of low alkali expansion agent, 3~7 parts of early strength agent. The invention has strong anchoring force, is not easy to dry shrinkage, has good durability, low cost, and is easy to realize industrialized production.

Description

technical field

[0001] The invention relates to the technical fields of anchoring materials such as mine shaft engineering, highways, railways, building installation engineering, and tunnel engineering, and particularly relates to a cement-based high-performance anchoring agent. Background technique

[0002] The traditional anchoring agents are resin anchoring agent and ordinary cement mortar. The resin anchoring agent has high production cost, poor anchoring force with the rock formation, and poor durability. The anchoring strength of ordinary cement mortar anchoring agent increases slowly, and some parts also experience dry shrinkage, which reduces the anchoring force in the later stage. SUMMARY OF THE INVENTION

[0003] The technical problem to be solved by the present invention is to provide a cement-based high-performance anchoring agent with strong anchoring force, not easy to dry shrinkage and good durability.

[0004] In order to solve the above problems, a cemen...