Concrete in the country / [American Cement Company]. (1910)
American Cement Company · Association of American Portland Cement Manufacturers · leaf 17
Fig. 4—Spreading the Cement Over the Sand. The Hand Mixing Method There are many ways of hand mixing, all having the same good results.The way described here we believe to be the one best calculated to obtain goodresults with a minimum of labor. In this description, and the…