Characteristics of coal mine reinforcement grouting materials, application of coal mine reinforcement grouting materials, coal mine reinforcement grouting materials. The reinforcement material is a two-component liquid polymer resin material with adjustable foaming ratio, composed of resin and functional additives. The reinforcement material is injected through a two-component liquid grouting pump and mixed in a mixer according to the two-component material mixing ratio: The polymer resin material with high toughness and strong adhesion can effectively improve the overall strength and impermeability of the grouting rock formation, and realize the reinforcement of broken coal and rock mass and the sealing of cracks. When exposed to water, it expands and generates secondary grouting pressure, which can penetrate into micro-cracks deep in rock formations, effectively reinforce broken and soft rock formations, and also effectively block water penetration in rock formations. It has high bonding strength and can bond with any rock surface. The solidification time is adjustable. According to different grouting requirements, the solidification time can be adjusted arbitrarily and can be accurately controlled. It has good toughness and high compressive strength. It can not only withstand the pressure of rock formations, but also withstand large displacements of rock formations. It is suitable for controlling weak rock strata or water-rich rock strata, and can be used for grouting water control in permeable rock strata or well walls, and for grouting reinforcement of soft and broken rock strata.
Product features
, low viscosity, good permeability, can penetrate into small gaps well, high compressive strength, can withstand the pressure of coal and rock formations
, strong bonding ability, high It has high compressive strength. After injection, it improves the strength of coal and rock mass and reinforces the bonding strength between coal seams. It has good plasticity and toughness and can withstand formation movement, meeting usage requirements
. It can react with water and seal water flow, and is suitable for aquifers. Water seepage, water seepage from micropores and fissures, anti-seepage and water blocking, rapid leakage prevention effect
, improved formation support, high mechanical strength and resistance, good weather resistance
, flame retardant and anti-static, improved underground operation safety . It has wide adaptability and does not affect the recoverability of coal. This material is easy to plan and cut, and the large pieces of bonded coal are also easy to break.
Application fields
Reinforce broken coal and rock roofs, reinforce tunnels and roofs of excavation and mining working faces in advance, prevent roof collapse, and speed up production.
, Reinforce coal pillars along the gob, reinforce broken coal pillars, seal gas drainage holes, prevent coal pillars and air leakage in goaf areas, reduce the size of coal pillars along the gob and increase recovery rates.
, working surface roof collapse and sheet side reinforcement to prevent personal accidents and increase the speed of working surface advancement.
, Reinforce roadway intersections, improve support strength, reinforce cracks and unstable coal and rock masses, and prevent roadway roof collapse and fragmentation.
, sealing the water flow at the top and floor of the tunnel, effectively blocking the water permeability of coal and rock formations, grouting water control of permeable coal, rock formations or well walls
, sealing the water flow in the wellbore, reducing or eliminating water spraying or leakage from the well wall , to ensure the long-term safe use of wellbore equipment.
Material type
Reinforcement material type This product is a non-foaming or micro-foaming material with high strength and is used for permanent reinforcement needs.
Reinforcement material type This product is a foam material with a foaming ratio of . to . This type of product has high strength. The foaming ratio of the product can be adjusted according to specific production needs, and can be used for semi-permanent and temporary reinforcement needs.
Material storage conditions
Materials should be stored in a dry warehouse away from direct sunlight and stored tightly. Shelf life months. Transported as general chemicals.
Due to different product production batches and specific models, the above pictures are for reference only. For details, please contact our sales staff for specific verification.
Characteristics of coal mine reinforcement grouting materials Applications of coal mine reinforcement grouting materials