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Method for modifying raw soil material by utilizing starch residue
The invention relates to the fields of building materials and environment-friendly energy-saving new materials, in particular to a method for modifying a raw soil material by utilizing a starch residue. The method comprises the following steps: (1) weighing raw soil and an inorganic cementing material according to a certain proportion, and uniformly mixing the weighed raw soil and inorganic cementing material to obtain a mixture; (2) drying the starch residue, grinding the dried starch residue into powder, weighing the powder according to a certain proportion, and adding water for boiling, so as to obtain a slurry; (3) weighing an admixture according to a certain proportion, and uniformly mixing the weighed admixture with the slurry obtained in step (2) to obtain a mixed liquid; (4) adding the mixed liquid obtained in step (3) into the mixture obtained in step (1) for powerful and uniform stirring, feeding the wet mixed material into a vacuum pug mill for pugging, and carrying out extrusion molding, wherein the mass of water accounts for 22-30% of the total solid mass; (5) naturally drying and curing the raw soil material molded through extrusion in step (4) for 28 days. The method is simple in preparation process; the modified raw soil material belongs to low-cost environment-friendly new building materials; the raw materials utilized in the preparation process are wide in source, so that the costs of the raw materials and transportation are greatly reduced.
Method for modifying raw soil material by utilizing starch residue
The invention relates to the fields of building materials and environment-friendly energy-saving new materials, in particular to a method for modifying a raw soil material by utilizing a starch residue. The method comprises the following steps: (1) weighing raw soil and an inorganic cementing material according to a certain proportion, and uniformly mixing the weighed raw soil and inorganic cementing material to obtain a mixture; (2) drying the starch residue, grinding the dried starch residue into powder, weighing the powder according to a certain proportion, and adding water for boiling, so as to obtain a slurry; (3) weighing an admixture according to a certain proportion, and uniformly mixing the weighed admixture with the slurry obtained in step (2) to obtain a mixed liquid; (4) adding the mixed liquid obtained in step (3) into the mixture obtained in step (1) for powerful and uniform stirring, feeding the wet mixed material into a vacuum pug mill for pugging, and carrying out extrusion molding, wherein the mass of water accounts for 22-30% of the total solid mass; (5) naturally drying and curing the raw soil material molded through extrusion in step (4) for 28 days. The method is simple in preparation process; the modified raw soil material belongs to low-cost environment-friendly new building materials; the raw materials utilized in the preparation process are wide in source, so that the costs of the raw materials and transportation are greatly reduced.
Method for modifying raw soil material by utilizing starch residue
LIU ZHIHUA (author) / LI YUANFENG (author) / QU LIE (author) / RONG HUI (author)
2015-12-16
Patent
Electronic Resource
English
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