William A. Radford · Radford Architectural Company · leaf 19
rements; yet our leadingmunicipal specifications require that ce-ment blocks shall not exceed 15 per centabsorption, regardless of the use to whichthey are put. Cement blocks may be properly used insubstitution of other materials for: 1. Foundations. 2. Exterior and superstructure wallscarrying… … Fig. 24—Section illustrating the method for the construc-tion of the window sill. In this variety of work it is at once seenthat uniform and the highest quality isnow required. Experience in the use of other materialshas taught us to recognize, practically with-out repeated or preliminary tests,…
