Some of the strongest buildings ever made used no power tools at all.
Lime-based mortars have underpinned building practice for millennia, valued for their compatibility with masonry heritage, permeability and modest mechanical strength. Formulated from air lime or ...
"This note ... was drafted for Historic Scotland by Pat Gibbons of the Scottish Lime Centre Trust with contributions from Bob Bennett ... [et al.]"--P. [2] of cover ...