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Mortar
BMI 980 Type M
Description
BMI 980 is a masonry mortar for many different products like: brick veneer, brick, concrete brick, concrete block and stone. Its excellent bonding properties and workability make it suitable for interior and exterior load bearing or non load bearing walls or fireplaces. This mortar gives high bond strength with most common brick or block.
Mixing
BMI 980 contains all ingredients in dry form, only water needs to be added. Mix one bag of BMI 980 with approximately 1 gallon of clean water to a plastic-like consistency. Do not mix longer than 5 minutes.
Application
Apply to brick or block, lay brick or block on top before mortar surface has skin formed. Push brick or block into mortar to form uniform joints of approximately 3/8". Make sure that head joints are filled with mortar. Tool joints when mortar has set to thumb print hard. Tool all joints at like vise set to assure uniform color of the mortar joints.
Coverage
One 80 lb. bag of BMI 980 makes mortar for approximately 50 standard brick or 15 &$8211; 8" concrete block. BMI 980 is also available in bulk in our silo mixing station. One ton of BMI 980 yields 19.5 cu. ft. mortar, good for 800-1200 standard brick or 280-320 - 8" concrete block.
Specifications
Portland cement and lime mortar type S
| Portland Cement Type I | ASTM-C150 | 1 Part |
|---|---|---|
| Hydrated Lime Type S | ASTM-C207 | 1/4 Part |
| Mason Sand | ASTM-C144 | 3.75 Parts |
| Compressive Strength | |||
| 7 Days | 28 Days | ||
|---|---|---|---|
| Flow: | 111% | 3220 | 3744 |
| Water retention: | 98.1% | 3125 | 3790 |
| Bond Strength: | 125.51 psi | 3160 | 3760 |
* These are laboratory tests according to ASTM C-270 and are simulating the strength in the wall-not in the mortar tub. Field tests from the mortar tub will be lower due to the fact that more water is added (See ASTM C-270-99 section 3 and Note 3 after section 5).
* Bond strength tested according to ASTM C-1072
