• Overview
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  • FAQs
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Fritz-Pak’s FR-1 offers low-range water reduction for bagged concrete, grout, and stucco mixes that do not require the same degree of strength required from most ready-mixed concrete applications. This product works similarly to superplasticizers, but to a much lesser degree. Where a high-range superplasticizer reduces water requirements by up to 40%, a water reducer like FR-1 only provides a 10% water reduction. FR-1 also contains a slight retarder, offering a mild delay in the setting of the mix. Like our other powdered admixtures, FR-1 does not contain chlorides, nitrates, nitrites, or other hazardous materials, and comes packaged in our signature, water-soluble bag for ease of use.

959101 lb. water soluble bag3025
953002.5 lb. water soluble bag1025
9591350 lb. paper bag140
What is the difference between a water reducer and a superplasticizer?
Both have the ability to chemically disperse cement, without the addition of water. That is why they are called water reducers. A water reducer has a limited capability in dispersion or water reduction, usually no more than 10% water reduction. A superplasticizer is a much stronger material and can reduce water content up to 40 %.
Which states have approved this product through the Department of Transportation?
Georgia, Idaho, Mississippi, Missouri, Ohio, Oregon, Tennessee, Texas, Virginia, West Virginia, & Wisconsin
Will FR-1 discolor the concrete?
No, at the recommend dosage rate FR-1 will not discolor the concrete.
Does FR-1 affect the strength of the concrete?
Yes, if you use less water when adding FR-1, your concrete will be stronger. If your water content is not changed, strength is not changed.
Will it change the set time?
Yes. It is a slight retarder.
Will FR-1 effect the air content?
What standards does it meet?
Meets ASTM C-494 Type D, AASHTO M-194 & CRD C-87.
Can I lower my cement content?
Yes. By lowering the water:cement ratio you can expect higher strengths. You can lower your cement content to lower your strength to meet your specification.
What are the best applications of FR-1?
FR-1 is extensively used as an ingredient in the manufacture of stuccos, bagged concrete, mortars, color hardeners and other cement based materials. Besides water reduction, it can also be used as a retarder for products used in warm weather conditions.
What is the shelf life of FR-1?
If stored properly, about 1-2 years. If the material ever seems hard or caked, do not use it. It will not break up in the mix.
  • Increases compressive and flexural strengths
  • Higher strengths may be achieved more economically
  • Higher durability
  • Decreases segregation
  • Improved workability.
  • Extended set times may be achieved
  • Reduced water content for a given slump
  • FR-1 is packaged in a water-soluble Fritz-Pak inner bag for convenient use at the plant or job site, eliminating the need for admixture dispensers


FR-1 is compatible with all air-entraining admixtures, calcium chloride and other admixtures. When used with other admixtures, each admixture must be dispensed separately into the mix.

Applicable Standards

This product meets the following specifications:

  • ASTM C-494 Type D
  • AASHTO M-194
  • CRD C-87