A Treatise on Masonry Construction

abutment amount angle arch ashlar average barrel beam bearing power blocks bridge briquettes broken stone building caisson cement mortar cent of voids center of pressure clay coffer-dam column compressive strength considerable construction cost crete crushing strength cubes cubic foot cubic yard culvert curve cylinder depth determine diameter driving earth edge employed Engineering equation experiments extrados face factor of safety feet foot forms formula foundation friction give grains gravel hammer hence horizontal inches increase joints labor laid less lime limestone line of resistance load material maximum method mixed natural cement piers pipe portland cement pounds pressure proportions reinforced concrete retaining wall rods rubble sand sandstone shearing sheet piles shows side slaking soil sometimes specific gravity square steel stress structure surface Table tensile strength thickness timber tons per sq usually varies vertical volume voussoir weight