Advanced Shrinkage Compensation for Crack-Free Concrete Structures
Keywords：
Polymer expansive agent
Concrete anti-crack additive
Shrinkage compensating admixture
Crack-free concrete technology
Product Introduction
T60 polymer anti-cracking expansion agent is a new type of concrete expansion agent successfully developed by SINO-SINA on the basis of the fourth generation of concrete expansion agent production technology of China Academy of Building Materials Science, with the remarkable features of low dosage, low alkali content and high performance. It can effectively prevent the cracking of concrete, so that the overall structure and waterproofing quality of reinforced concrete can be fundamentally improved, thus realizing the structural self-waterproofing of concrete and the seamless construction of ultra-long structures.
High-Rise Foundations: Prevents early-age cracking in thick footings.
Bridge Decks: Compensates for drying shrinkage in post-tensioned concrete.
Tunnels: Reduces segmental lining leaks.
Marine Structures: Resists chloride/sulfate corrosion
Cold Regions: Withstands 300+ freeze-thaw cycles
Q:Can this replace steel reinforceme
A: No, but it reduces crack-related rebar corrosion by 70% (per NACE SP0290).
Q:Is special curing required?"
A:Standard moist curing (7 days) is sufficient.
Product Parameters
Packed in composite bag, net weight 25kg/bag, shelf life 3 months; need to be stored in a dry and ventilated room, the bag is sealed, pay attention to moisture-proof, anti-freezing.
| Test item | Indicator Requirements | |
| Type I | Type II | |
| Magnesium oxide content(%) | ≤5.0 | |
| Alkali content(%) | ≤0,75 | |
| Fineness | 80 μm square hole sieve 1.18 mm square hole sieve | ≥200 ≤0.5 |
| Setting time | Initial coagulation | ≥45 ≤600 |
| Restriction of expansion(%) | Water (7d) Air (21d) | ≥0.035 ≥0.050 ≥-0.015 ≥-0.010 |
| Compressive strength(MPa) | 7d 28d | ≥22.5 ≥42.5 |
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Our products have undergone rigorous testing at our national testing laboratory (CABR testing center co., ltd). Renowned Fortune Global 500 firms such as China Railway Group Limited, China Communications Construction Company Limited, and Sinohydro are among our esteemed clients.
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