Cement houses and how to build them. . j FfrtfSH Floor Limns axa-itMC. Fig. 19—Showing the details of construction at the second floor level. Note the air space. This detail provides also fop an anchored wall. 18, and upon the satisfactory conclusion ofthe tests called for, a certificate of approvalshall be issued to the maker of the blocksby the Bureau of Building Inspection. Thiscertificate of approval will not remain in force for more than four months, unlessthere be filed with the Bureau of BuildingInspection, at least once every four monthsfollowing, a certificate from some reliablephysic
Cement houses and how to build them. . j FfrtfSH Floor Limns axa-itMC. Fig. 19—Showing the details of construction at the second floor level. Note the air space. This detail provides also fop an anchored wall. 18, and upon the satisfactory conclusion ofthe tests called for, a certificate of approvalshall be issued to the maker of the blocksby the Bureau of Building Inspection. Thiscertificate of approval will not remain in force for more than four months, unlessthere be filed with the Bureau of BuildingInspection, at least once every four monthsfollowing, a certificate from some reliablephysical testing laboratory showing thatthe average of at least three (3) specimenstested for compression, and at least three(3) specimens tested for transversestrength, comply with the requirementsherein set forth. The said samples to beselected by a Building Inspector, or by theLaboratory, from blocks actually going in-to construction work. 22. Test Requirements. Concrete hol-low blocks must be subjected to the follow-ing tests; Transverse, Compression andAbsorption,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdomesticarchitecture
