Supply of cement expanders

TD-UEA concrete expansion agent a principle: The product incorporated in concrete, can generate expansive reaction cement combined with water and the crystalline hydrates --- ettringite (C3A.3CASO4.32H2O), the concrete at an early stage and mid produce moderate expansion in the steel and ortho constraint, it should be expanded into pressure, this pressure can be substantially offset tensile stresses generated during the shrinkage of concrete, thereby preventing or reducing shrinkage and cracking of concrete, and concrete densification, which can also improve the crack resistance of concrete seepage, reaching structural waterproof effect. The two main properties: 1. incorporated in cement 10-12% of the product can be mixed into concrete for doing structural waterproof or waterproof mortar. 2. mixed with concrete and not mixed with the product of the product compared to ordinary concrete, rheology before solidification of similar, but slightly faster slump loss, setting time has been shortened, but does not affect the construction. 3. When mixed with the product of concrete reinforcement was 0.2--1.0%, the expansion of 0.02--0.04% limit established 0.2-0.7MPA from stress in concrete, on the strength of little effect. 4. Under the provisions of content, compared with ordinary concrete with early strength, 28-day strength and non-doped by roughly the same term strength continues to grow. 5. impermeability grade is greater than the S30, antifreeze grade greater than D150, elastic modulus, Poisson's ratio is similar to ordinary concrete. 6. no corrosion of steel, for water pollution. Three main purposes: 1. underground structures such as underground parking warehouse air defense sidewalk machine kang mine tunnels, subway. 2. The construction of pools pool water tower tank large container barn cave tanks and other repositories. 3. Since the waterproof mortar rigid waterproof roof moisture barrier layer impermeable layer of mortar. 4. After anchoring prefabricated pipe joints joint framework post-tensioned precast member grouting material was added back rock poured joint grout. 5. The anchor bolts base of machinery and equipment and non-shrinkage concrete foundation perfusion. 6. adze iron pipe protection mortar lined steel pipe. 7. Cement Manufacturing from the stress of prestressed and prestressed concrete steel jacket pipes concrete floor beams and reinforced concrete pipes and other waterproof roof. 8. Requests the perfect look good crack resistance of important buildings, such as sports museum stands hotels. 9. Pavement bridge culverts and other concrete surface. 10. The high strength and impermeability of the construction shaft groove filling backfill concrete dam. Where the requirements of impermeability cracking joints filled with concrete works and cement products, you can use this product. Four. Note: 1. UEA concrete mix with ordinary concrete than the same design, but it must be tested to determine, and is generally less than the minimum amount of cement except 300Kg / cubic meters, hydraulic marine mass concrete. 2. You can join on this product and other raw materials in principle mixer for mixing, stirring time should be extended, in order to ensure uniform mixing of the material. 3. To measure accurately, preferably with the person responsible for ensuring error control in less than 0.5%. 4. Transport vibrated concrete and ordinary concrete the same, but also pay attention to self-waterproof concrete vibrated dense, vibration due to vibration can not leak through vibration. 5. Construction joints treated in a conventional, but stitched use UEA mortar with a waterproof cover. 6. After pouring the concrete can not be exposed to direct sunlight, should be covered with straw mats, have someone responsible for the concrete to harden after curing time of not less than 14 days, the concrete is often kept in a wet state. 7. Template form removal with ordinary concrete with the prescribed time, winter time be extended. Exposed concrete surface must be covered and protected with wet mats or films. If cellular doghole can place the loose float removed, then UEA concrete repair mortar or pisolite good. 8. UEA concrete work environment over a long period can not be 80 ℃, the construction temperature is below 5 ℃ insulation measures to be taken. Five. Storage: 1. The product is 50 kg woven bag. 2. It should be placed on wooden pallets stored in a dry place.