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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||428/344 ; 106/627 ; 428/345|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 17 인용 특허 : 20|
Acid resistant concrete articles, especially sulfur concrete pipes manufactured from a material formulated on the basis of a composition of portland cement concrete suitable for the manufacture of pipes by means of the dry casting method, the volume of portland cement, filler and water being replaced by a substantially equivalent volume of sulfur cement and filler, while the amount of other components remains substantially unchanged. The sulfur concrete pipes are manufactured by mixing the components of the material and adjusting the mixture to a tempera...
A method of manufacturing acid resistant concrete pipes from sulfur concrete by the dry casting method which consists essentially of the steps of: (a) formulating a concrete composition from components consisting essentially in percent by volume of about 5 to 30% sulfur, up to about 70% coarse aggregate of particle size greater than 4 mm, about 10% to 80% fine aggregate of particle size up to 4 mm, about 3 to 40% filler, about 1 to 10% air, 0 to about 5% reinforcing fibers and 0 to 10% additives and/or adjuvants, said amount of sulfur being sufficient wh...