Brick and concrete manholes can often be restored without the use of an epoxy corrosion barrier coating. Mainstay® calcium aluminate cement mortars are designed to withstand high levels of hydrogen sulfide and prevent future attack in corroded brick and concrete structures.
Product Detail Sheets:
- Mainstay ML-CA Pure Calcium Aluminate Restoration Mortar (145 KB): applied up to 3"
- Mainstay ML-PF Pure-Fused Calcium Aluminate Restoration Mortar (146 KB): applied up to 3" and contains 100% pure fused calcium aluminate aggregates
Ancillary Manhole Rehabilitation Products:
- Mainstay ML-10 Hydraulic Cement Mortar (134 KB): a fast-setting mortar used to quickly repair leaks in the manhole prior to restoration
- Madewell® 806 Flexible Joint and Manhole Chimney Seal (143 KB): a flexible epoxy coating applied to the joint between the chimney and frame of a sewer manhole at a thickness of 1/4" to protect against cracking from freeze/thaw and traffic
Recommended For:
Restoration of brick and concrete manholes experiencing corrosion with a pH of 1 or higher
Advantages of Mainstay Calcium Aluminate Cement Mortars:
Mainstay calcium aluminate cement mortars are designed to withstand corrosive environments with a pH of 1 or higher.- These products are specifically designed for use in moisture laden environments. Mainstay calcium aluminate products are properly applied when the surface of the concrete or brick manhole remains damp.
- Mainstay ML-CA and ML-PF are high-build restoration mortars that can be applied to vertical manhole surfaces up to 3" thick, often restoring the manhole substrate to its original thickness.
- The use of these high strength (>10,000 psi compressive) materials results in a restored surface that is typically stronger than the orginal structure.
- Mainstay calcium aluminate mortars prevent leaks and groundwater infiltration in brick and concrete manholes.
