B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
259/7
B01F 15/04 (2006.01) B28C 7/04 (2006.01) G05D 11/02 (2006.01)
Patent
CA 1195973
ABSTRACT OF THE DISCLOSURE When manufacturing a green concrete or mortar by admixing and kneading premeasuared amounts of at least one of fine and coarse aggregates, a powder of an hydraulic substance, at least one additive, and predetermined quantity of water, an improvement is provided. The improvement comprises the steps of: 1) dividing the predetermined quantity of water into only two predetermined quantitative portions; 2) incorporating a major portion or all of the additive into a first one of the divided predetermined quantitative water portions; 3) admixing the aggregate and all the admixture of the first predetermined quantitative water portion and the additive, thereby uniformly to pre-coat the aggregate with water; 4) admixing the powder of the hydraulic substance and any remaining quantitative portion of the additive and the mix- ture resulting from step 3); 5) admixing all the other predetermined quanti- tative portion of the water to the mixture of the hydraulic substance result- from step 4); and kneading the resulting mixture, thereby to form the green concrete or mortar. In this way, it is possible to prepare a green com- position, more particularly, green mortar or green concrete having a small percentage of bleeding water. It is also possible to obtain concrete pro- ducts having high mechanical strength and in which rusting of reinforcing steel bars can be reduced.
397696
Higuchi Yoshiro
Ito Yasuro
Kaga Hideharu
Marushima Norio
Tsuji Masanori
Borden Ladner Gervais Llp
Ito Yasuro
Taisei Corporation
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