ZT-AA chemical conversion type expansion fiber

ZT-AA chemical conversion type expansion fiber performance standards: JC474-2008 / GB23439-2009 Introduction ZT-AA chemical conversion type expansion fiber is a cement-based powder materials, it contains the active substance with concrete unhydrated has a hydration reaction of cement and material activity, generating crystals and clog the pores of concrete. Many polymer materials, modified fibers, inorganic materials and auxiliary materials, processed by a special process of dry powdered material. Is designed for concrete, mortar and design flexibility crack admixture with high reduction ratio, high crack resistance, high toughness and other characteristics. Expansion component Chemical Composition (%) Name LOSS SiO2 AL2O3 Fe2O3 CaO MgO SO3 expansion component 1.80 3.55 23.67 14.82 24.92 27.6 5.1 active compounds contained therein works ZT-AA play a leading role, the compound with calcium ions The reaction product can be internal voids and cracks in the concrete with water migration encountered hydration of cement and other materials can be after a chemical conversion to produce calcium silicate crystals and plug gaps and cracks, reduce the porosity of cement stone. The active compound to restore the original state after the conversion reaction, the reaction may continue to participate in the next round. Schematic diagram of the conversion reaction is as follows: Advantages a significantly improved water impermeability of concrete; 2, lower cement porosity increase freeze-thaw resistance of concrete capacity; 3, avoid steel corrosion; 4, to reduce plastic shrinkage and drying shrinkage of concrete and reduce the risk of cracking; 5, non-toxic environmental pollution; 6, to avoid high maintenance costs, maintenance costs. Applications can be applied to all the requirements of high durability of concrete engineering, concrete works in harsh environments such as: air defense projects, tunnels, roof, road, basement project, the effect is more pronounced. A performance limit expansion, water 7d, ≥0.025%; 2, water 28d, ≤0.10%; 3, air, 21d, ≥-0.020%; 4, penetration height ratio%, ≤40%; 5, for reinforcement corrosion effect, no rust role; Volume 1, compacting waterproof concrete mixed with 3-5% 2, 5-7% shrinkage-compensating concrete waterproof packaging and storage 1. woven inner plastic packaging 2. proof storage bag weighing 50kg 3. 4 Save for one year