lean lime mortar will come in contact of lime mortar, two inches of tar and with the wood. This mortar is rilled coarse sand concrete were used, a prob- under the joists and between them ably still longer life would be assured. somewhat above their upper surfaces. The cost of the flooring shown in… … FIG. 8 flooring of %-inch maple, omitting the off. This should be done, not with a joists, the cost should be about $1.10, straight-edge, but with an edge curving or 4s. 5d. , per square yard. nearly half an inch in three feet, so that A granolithic or Portland cement con- the underside of the…
Engineering
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