CGM - 340 high-strength non-shrink grout material shrinkage method - in the construction process The development of cement grouting material

CGM - High-strength non-shrink grout material CGM - 340 CGM high-strength non-shrinkage grouting material standard - 340 340 as well-known CGM high-strength non-shrinkage grouting material specification - 340 high-strength non-shrink grout material manufacturers, we are committed to providing customers with the most high-quality product quality and service attitude, customer satisfaction is our biggest goal. So friends self-leveling grouting material construction know as in CGM - minimum thickness 340 high-strength non-shrinkage grouting material construction process to reduce shrinkage? Interested friends let small make up together and see it.     1, strengthen early since the maintenance & # 8195;   Since maintenance refers to the grouting material hardening process, a component will be the internal storage of water supply is not hydrated cement particles or mineral admixture, the grouting material continue hydration hardening effect. Light porous aggregate and active admixture is the maintenance for henan normal grouting material. Using light porous aggregate and active maintenance of admixture effect can inhibit the autogenous shrinkage of high performance grouting material. Configuration of grouting materials, such as can mixed with some admixtures have bibulous is helpful to reduce the autogenous shrinkage. Incorporation of flooding light aggregate, through internal moisture light aggregate to cement is the supply of the system, can effectively reduce the autogenous shrinkage of high performance grouting material, and not reduce strength and other properties;     2, the use of fly ash and admixture & # 8195;   Replace part of cement with fly ash and limestone powder can obviously reduce the autogenous shrinkage, especially of the early autogenous shrinkage. Grouting material early low elastic modulus, creep coefficient is big, so the drying speed is the main factor decided early autogenous shrinkage;     3, using reduced the seam an agent to reduce the autogenous shrinkage & # 8195;   Reduced the seam an agent by reducing the internal surface of wool stoma Zhang Ligan grouting material shrinkage and the steam turbine grouting material shrinkage, experts through epoxide series reduction test results show that the seam an agent can effectively restrain the autogenous shrinkage of cement slurry net, and the decrement of autogenous shrinkage and the surface tension the decrement of roughly the same;     4, strengthen early curing measures & # 8195;   Strengthen early curing measures can reduce the autogenous shrinkage grouting material. Initial setting start immediately after curing, take measures to prevent the water loss, which can effectively inhibit the early autogenous shrinkage of high performance grouting material. Steel template, wooden template, such as plastic template during construction, and the template reached the grouting material surface in front of the gate position can't maintenance of water supply, a heavily autogenous shrinkage is just at this time. Using may bring membrane water curing template will help reduce autogenous shrinkage, such as lining water-repellent plastic cloth with soft nap of steel template or porous templates. Using the template lined with porous materials absorb moisture, have hydrophobic and easy to release the moisture at the same time, achieve the goal of maintenance within the template grouting material.