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SET ACCELERATED MORTAR

Increase Set Time in Cold Weather

Standard (SA-01) and Color (SA-05)

ACCELERATED SET TIME. INCREASED PRODUCTIVITY.

SPEC MIX® Set Accelerated Masonry Mortar is specifically engineered to increase the set time of masonry mortar during cold weather construction for unit masonry. It is a dry, preblended mortar mix based on project specifications requesting formulations utilizing Portland cement and hydrated lime, or masonry cement or mortar cement. Using computerized batching systems these cementitious materials are blended with dried masonry sand, non-chloride set-accelerating admixture. The final product is laboratory and field tested to ensure superior bond strength, water retention and board life. In addition to custom mix designs that are available for specific applications or properties, the standard Set Accelerated Masonry Mortar is designed to be compatible with the characteristics of the specified masonry unit. It is acceptable for all types of masonry construction with submittals available upon request. It may be used above or below grade when manufactured to the appropriate specification.

Set Accelerated Masonry Mortar is produced under strict manufacturing standards, and complete quality control measures are implemented with each batch. A digital printout displaying the proper proportions per batch may be kept as a permanent record. Each SPEC MIX manufacturer certifies that SPEC MIX Set Accelerated Masonry Mortar is pretested to meet ASTM C 270 and ASTM C 1384 requirements as well as other applicable ASTM and ACI standards.

SPEC MIX® Set Accelerated Mortar is available in 80 lb. (36.3 kg.) packages for easy hand loading or in 3,000 lb. (1,360.8 kg.) reusable bulk bags to be used with the various SPEC MIX silo systems.

PRODUCT FEATURES

• Specifically engineered to increase the set time of masonry mortar during cold weather construction for unit masonry.
• Blended with dried masonry sand and non-chloride set-accelerating admixture
• Field tested to ensure superior bond strength, water retention and board life
• Designed to be compatible with the characteristics of the specified masonry unit.
• Produced under strict manufacturing standards, and complete quality control measures

Mortar Properties (laboratory prepared)
Compressive StrengthReference MortarSet Accelerated MortarASTM C 1384 Requirement
7 Day1,560 PSI (10.7 MPa)1,600 PSI (11.0 MPa)80% min of reference
28 Day1,900 PSI (13.1 MPa)1,840 PSI (12.6 MPa)80% min of reference
Reference MortarSet Accelerated MortarASTM C 1384 Requirement
Water Retention86%90%Report
Air Content7.2%6.9%Report
Board Life82 min46 minReport
Initial Set6 hr 44 min5 hr 35 minAt least 1:00 hr earlier than ref. Not more than 3:30 hr earlier than ref.
Final Set15 hr 8 min12 hr 23 minAt least 1:00 hr earlier than ref.
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