Crystallization Admixture Waterproofing
Obaproof WP-502 Crystallization Admixture Waterproofing is kind of powdered form is ready to be mixed with the cement. When concrete is added the Obaproof WP-502, it can form a crystalline structure with which can take compressive stresses very effectively and can bear infinite
hydrostatic pressure, self-repair hair line crack up to 0,Amm.
Advantage:
•Provides significant cost saving
• Integral protection for the whole concrete
• Permanent surface protection
• Time saving
• Cures internally
• Self-heal of surface crack
Packaging Storage:
Plastic bucket or valve pocket. When storing and transporting, different types of products should be stacked separately and should not be mixed.Avoid sun and rain, to prevent damp.
In normal transportation, storage conditions, the shelf life is 12 months.
Preparation:
Trial mix shall be conducted minimum 28 days before the waterproofing is ready to caste. The maximum water and cement ration is not greater that 0.45 (free water-fine aggregate moisture + admixture). The quantity of concrete that to be treated with Obaproof WP-502, Dosage rate.
Obaproof WP-502-0.8% by weight of cementitious content.
The concrete should have a minimum cement content of 350 kilograms per cubic metre and maximum free water/cement ratio of NOT GREATER THAT 0.45.
Performance Feature:
• Maximize the compactness of the cement concrete itself. Through the material catalytic crystalline materials can fulfil the cement concrete with well-defined pores, also other defects. To maximize the impermeability of concrete, pouring and waterproofing once it completed,
• Have excellent self-healing function, the concrete cracks have automatic repair function, in the water when the automatic
repair function is re-activated.
• Have alkaline system to perform an excellent and enhanced function, can fully improve the workability of concrete and the
strength of concrete increased by 20- 30%.
• Reduce shrinkage and cracking of the concrete itself.
• Prevents the corrosion of harmful chemical aggressive media (such as chloride ions and improves the durability of concrete).
Construction Points:
Mixing process in the concrete according to a certain proportion added to the mixer, mixer (or other mixing container), the
mixture continued to stir more than 5 minutes. Blending amount of blending will be determined in accordance with engineering practice. The material has some water reducing function, it can re-place some or all the concrete pumping agent. The use of the product need to do experiment before used.
Vibrating and Curing:
The mixing of fresh concrete to pour and according to the specific circumstances of vibration, to ensure that the hardened concrete compact. Fresh concrete after the initial setting, must be properly maintained, you can take water and film cover the way to prevent the concrete loss of water too fast cracking.
Malaysia
