PRODUCTS
ALOFIX MC, BRISTAR, EXPAN, Pre U-LOX, TETRAGUARD AS20/AS21, TETRAGUARD PW
TETRAGUARD AS20/AS21
Shrinkage Reducing Admixture
DESCRIPTION TETRAGUARD, aiming easier to apply in concrete mixes and less cost performance, is renvated. It provides almost non-odor, better workability in fresh concrete and easier management under various temperaturs.
 
PRODUCT HISTORY TETRAGUARD series has been developed by the synergy of Taiheiyo Materials Corporation and Sanyo Chemical Industry., since Tetraguard S3, the first of this series, was introduce to the market in 1982. then the improved series, Tetraguard AS20 has been sueccssfully employed in various concrete dor more than a decade and achieved good reputation for concrete products, particularly Glass-Fiber Concrete Panel, and ready-mixed concrete. Tetraguard AS21 isdeveloped in accordance with the same theory, "an effect to reduce drying shrinkage due to weaken capillary tension of pore water in concrete", especially for the ready-mixed concrete industry.
 
BENEFITS 
  1. Greatly reduce crack appearance caused by drying shrinkage in concrete structures.
  2. Develop better bonding strength.
  3. Improve crack-reducing performance with an inorganic expansive admixture.
  4. Reduce autogenus shrinkage of concrete
Reduction of drying shrinkage Shrinkage may be reduced by as much as30-50% at 28 days when 2% of Tetraguard admixture by mass cement is used in the mortar application.
 
Reduction of drying shrinkage cracking and micro cracking
 
 Reduction in drying shrinkage reduces potential for cracking thereby improving aethetics, water tightness, and durability
 
DIRECTIONS for USE
  1. Procedure to mixture
    Manufacture-Add-Deliver-Unload-Place-Cure Replace as a part of miing water in the same way as generally - used air - reducing admixture. Tetraguard is added to a mixer at bathing plant as a part of unit water content and must be mixed perfectly. In advance, a quality of Tetraguard is necessary deducted from unit water content.
  2. Delayed Addition Method
    Manufacture-Deliver-Add-Agitate-Unload-Place-Cure
    Add to transporting truck just before unloading and mix with high-speed agitation which takes 60 seconds.
  3. Dosage
    Tetraguard AS21 is recommended for standard at 6 kg/m3.
    Tetraguard AS20 is recommended for standard at 7.5 kg/m3.
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