We are offering Mixing Mortar. For vertical holes, pouring 'hi-tech' expansive mortar into holes directly. Tamp the mortar filled into the holes by a slightly smaller stamp stem. For very long holes, tamp the mortar section by section. For horizontal and slant holes, insert a slightly smaller plastic pipe into the hole, and then fill the mortar into the pipe slowly, withdrawing the pipe from the hole simultaneously. Tamp the mortar section by section.