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Shrinkage reducing admixture (SRA) (AQUAGUARD™TD-200)

Product nameAQUAGUARD™TD-200
Chemical StructureSpecial polyoxyalkylene glycol
ApplicationShrinkage reducing admixture (SRA) for mortar and concrete
Features
  • Reduces drying shrinkage in mortar and concrete.
  • shows good resistance to freezing and thawing by maintaining quality of entrained air which is entrained by AE admixtures.
  • has little effect on air content and fluidity of mortar and concrete and causes little contamination.
  • Does not lower concrete compressive strength much and shows the same quality as a usual concrete.
  • has little effect on fresh concrete property and workability.
  • Can be used with expansive addictive and achieve concrete drying shrinkage almost zero.
  • Non-dangerous goods. Easy to dissolve in water, easy to handle.
Mechanism of shrinkage reducing (The difference between AQUAGUARD™TD-200 and common shrinkage reducing admixture)
  • AQUAGUARD™TD-200: shows drying shrinkage-reducing effect by our own technology that inhibits water evaporation from mortar and concrete. Also, has little effect on air control admixtures (ex.AE admixture and deformer) because of its low surface activity.
  • Common shrinkage reducing admixture: shows drying shrinkage-reducing effect by reducing the surface tension of the pore water.

  • AQUAGUARD™TD-200
    (Inhibiting water evaporation from capillary)

  • common SRA
    (Reducing capillary tension)
Dosage and usage
  • To achieve desired shrinkage-reducing performance in concrete mixtures and mortars, the recommended dosage range of AQUAGUARD™TD-200 is 7.5 to 25 kg/m³. It is important to conduct trials to determine the respective dosages of AQUAGUARD™TD-200 and other admixtures.
  • The mix water content should be reduced to account for the quantity of AQUAGUARD™TD-200 admixture used.
  • AQUAGUARD™TD-200 may be added to the concrete mixtures and mortars during the initial batch sequence or at the jobsite.
Concrete property
(1) Concrete formulation
 Concrete formulationAdmixture (kg/m³)Air content
W/C (%) s/a (%)Unit content (kg/m³)Water
reducer
AQUAGUARD™
TD-200
CW and
admixture
SG
AQUAGUARD™
TD-200 add Ex. A
5548.63091708889392.29.65.8
AQUAGUARD™
TD-200 add Ex. B
11.55.3
AQUAGUARD™
TD-200 add Ex. C
19.24.6
Plain2.95.1

Cement:Ordinary portland cement (density 3.16g/cm³)
Fine aggregate: land sand (density in saturated surface-dry condition 2.57g/cm³)
Coarse aggregate: crushed hard sand stone (density in saturated surface-dry condition 2.65g/cm³)

  • (2) Drying shrinkage behavior
  • (3) Resistance to freezing and thawing
  • (4) Compressive strength

*These figures are typical measurements, which are not guaranteed in any way.

Construction examples
(Conditions)
  • Construction method: using AQUAGUARD™ in adjacent points
  • Concrete formulation: W/C 53% (water unit content 183kg/m³), fine aggregate ratio 43.9%
  • Dosage: 20kg/m³
  • passed years: 5 years
(Images)
  • With AQUAGUARD™ (few cracks)
  • Plain (many cracks)

*The cracks on the images are highlighted. They don't influence the durability of buildings.

Product data
Product nameAppearanceDensity
(g/cm³)
Viscosity
(mPa・s 20℃)
Total alkali
quantity
Chloride ion
content (%)
Packaging
AQUAGUARD™
TD-200
colorless~
right yellow
transparent
liquid
1.092~1.12750~200≦0.05≦0.0120kg cans,
210kg drums
and
1,100kg IBC
Cautions
  • Safety Data Sheet (SDS) should be consulted before use.
  • Please note that these contents in this website are subject to change without notice.
  • Please be aware of intellectual property rights related to third-party use, usage, etc. when you use our product in this website. We don't take responsibility for problems related to intellectual property rights.

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