Concrete Crack-resistant Waterproofer

Concrete Crack-resistant Product IntroductionCSA anti-cracking waterproof agent of concrete is a kind of rigid anti-cracking waterproof material prepared with many organic and inorganic components, not only including high efficiency expanding & anti-cracking components, high efficiency CSA expansion agent, which is a patented product of Tangshan Polar Bear Company, but also the plastic expansion component as well as anti-seepage & shrinkage-reducing component. The plastic expansion, post-hardening expansion and reduction functions are successively and organically integrated into the product and in this manner the double purposes of waterproof and anti-cracking performance are accomplished. The performance of the agent not only meets the requirement of JC476-1988 Concrete Expansion Agent Standard but also meets the requirement of JC474-1999 Waterproofing Agent of Mortar and Cement Standard. In order to satisfy the requirement of product conveyance with pump as well as the requirements of different projects, temperatures and concrete strength etc, the CSA anti-cracking waterproof agent of concrete can be prepared with multiple functions such as anti-seepage, anti-cracking, water reduction, retarding, fast intensification, high intensity, freeze-proof, and pump conveyance.. Technical Index CSA anti-cracking waterproof agent of concrete is powdery product, which has low alkali content, without chlorine and corrosion on rebar Fineness: 0.315mm; triage is less than 15% Water content: less than 5 % Chlorine ion: less than 0.05 % Performance Features (1) After mixing certain quantity CSA waterproofing agent (proportion: 9-11% of the material) into cement, the plastic shrinkage of concrete will be lessened, 0.02% slight expansion will occur, and the volume reduction of concrete will be compensated or lessened. As a result of anti-seepage dense component and shrinkage reducing component, the concrete has little shrinkage at later stage, and the concretes denseness is higher than that of the concrete added with expansion agent. (2) CSA anti-cracking waterproof agent of concrete has short period of expansion, and generally there is no obvious expansion 14 days later and this will not affect the concrete strength at later stage. (3) After mixing with CSA anti-cracking waterproof agent of concrete, the concretes anti-seepage performance is greatly improved, and the anti-seepage grade of concrete will be over S30 under appropriate conditions. (4) As the product contains organic components of anti-seepage and shrinkage-reduction, the concrete which is added with the product has good cohesive quality without eduction or water secretion, so the beehive and pockmarked surface can be effectively avoided. (5) As the product contains high efficiency expansion agent, the concrete which is added with the product is available for super-length structures seamless construction just like the concrete which is added with expansion agent. (6) As the product expands very fast at high expansion rate at initial stage, it is applicable to the current cement which is characterized by thinness, fast intensification at initial stage, earlier occurrence of cracks. Applicable Scope For its excellent anti-cracking and anti-seepage performance, CSA anti-cracking waterproof agent is especially applicable to the following engieering, (1) Underground engineering such as subway, tunnel, underground garage, civil air defense and the cellars of high rise building etc. The later-pouring area can be reduced or exempted, and super-length structures seamless construction can be accomplished. (2) Water pool, sewage disposal factory, storage tank, main dam and other projects which have high requirement on anti-seepage and ant-cracking performance. (3) Rigid waterproofing roof, anti-seepage mortar layer and damp-proof layer etc. (4) Connection of later-poured seam of building, frame structure joint. Notices for Use1. Mixing Method Replacement rate of total gelatification material Proportioning of anti-cracking waterproof agent in the total material K%In the formula, K indicates the proportioning of agent, mC indicates the quantity of cement in concrete, mF indicates fly ash, mK indicates anti-cracking waterproof agent. When calculating the quantity of agent, it is necessary to be in consideration of exceeded part of fly ash for replacement. In accordance with the anti-cracking requirements in different parts, the proportioning of agent mixed into concrete shall be confirmed, It is recommended, Bottom board: 9 %; large volume concrete over 1 m: 10 % Wall: 10 %, concrete over C45 grade: 11% Floorslab: 10 % 3. Large volume concrete must be constructed as per the technical requirement on large volume concrete construction, the procedure cannot be omitted for mixing into anti-cracking waterproof agent. 4. Whereas the present cement is generally intensified earlier and very thin, the retarding-type pump is better for conveyance if pump is chosen to convey the agent. 5. For its importance to concrete crack, the maintenance of concrete cannot be omitted even if anti-cracking waterproof agent is used. 6. After mixing anti-cracking waterproof agent into concrete, the concrete vibrating must be conducted as per criterions. 7. If the waterproof system is adopted, it is recommended to prebury grouting pipe to strengthen the waterproof grouting whereas breast piles and breast walls are directly used as waterproof concrete in some projects because of space problems and the external wall cannot be strengthened. Difference between CSA anti-cracking waterproof agent and other similar products Difference between CSA anti-cracking waterproof agent and expansion agent: (1) The major component of CSA anti-cracking waterproof agent is the high efficiency CSA expansion agent, which is a patented product of Tangshan Polar Bear Company and has the similar performance to Japanese DENKA20# product, the public recognized best expansion agent in the world. Of course, the CSA expansion agent is far better than other domestic expansion agents in performance. The agent has been marketed in the UK, Korea, Spain, UAE, Indonesia and other countries as well as Taiwan of China for many years. (2) CSA anti-cracking waterproof agent contains plastic expansion component and shrinkage-reducing component, which can greatly reduce the plastic shrinkage prior to the hardening of concrete. Slight expansion will occur just like the pure expansion agent after the concrete hardens, while the pure expansion agent is not provided with plastic expansion function but only the slight expansion. CSA anti-cracking waterproof agent has double-expansion function, and this is different from the concept double expansion source of expansion agent. (3) As it contains organic waterproof component, CSA anti-cracking waterproof agent can meet the both standards of waterproof agent and expansion agent, however the pure expansion agent cannot meet the requirement of waterproof agent.