Please check these and contact us if you are unable to deal online. 1  At a. 2  Charts 3  &. Share. 4  HL. Director. 5  Financials. Company.  Deal now.
Hydrated lime is not a necessary mortar ingredient. You can make mortar with just Portland cement, sand and water. The mortar that I used to permanently attach the brick and stone to my patios did not contain any hydrated lime. But adding hydrated lime to the mortar mix can be beneficial. The plasticity or workability of the mix will improve. When hydrated lime is added to the mix, the sand and the cement do not separate.
If you're going to use fire brick, use Portland Cement not mortar mix. And don't use that ready mixed bagged stuff. One shovel of cement to 3 shovels of sand. Keep joints to no more than 1/4 and allow a quarter to a half inch of clearance between the firebrick and the block for expansion.