Influence of substrate and sand characteristics on Roman ...
Whilst there is no influence of mineralogy on strength for 20 mm thick mortars with sand gradings 1 and 3 applied to the high WAC brick the ratio of WAC for the carbonate sand with respect to the silica sand increases from for sands C1 and S1 to for sands C3 and S3; these ratios have been extracted from data in Fig. 7b.