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US 7,069,677 B2Granted
Method for producing a ready-mix soil material
AssigneeCheng-Feng Chang
InventorCheng-Feng Chang
Life of this patent
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Abstract
A method for producing a ready-mix soil material includes the steps of: (a) crushing earth material excavated from a work site; (b) sieving the earth material after crushing so as to obtain raw soil material; and (c) mixing metered amounts of the raw soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material.
Claims16
A method for producing a ready-mix soil material, comprising the steps of:
- (a) crushing earth material excavated from a work site;
- (b) sieving the earth material after crushing so as to obtain raw soil material;
- and
- (c) mixing metered amounts of the raw soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material,
- wherein the method further includes, prior to step (c),
- analyzing samples of the raw soil material in terms of clay, sand, and gravel contents,
- with reference to results of analysis of the samples, preparing ready-mix soil material formulations having different mechanical properties by varying amounts of the raw soil material and said at least one strength-enhancing additive, and
- establishing a database for the ready-mix soil material formulations.
5 more elements
A method for producing a ready-mix soil material, comprising the steps of:
- (a) crushing earth materials excavated from different work sites;
- (b) sieving the earth materials after crushing so as to obtain different raw soil materials;
- (c) mixing the raw soil materials to obtain a mixed soil material having desired clay, sand and gravel contents;
- and
- (d) mixing metered amounts of the mixed soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material,
- wherein the method further includes, prior to stet (d),
- preparing ready-mix soil material formulations having different mechanical properties by varying amounts of the mixed soil material and said at least one strength-enhancing additive, and
- establishing a database for the ready-mix soil material formulations, and
- wherein the metered amounts in step (d) are determined with reference to the database.
6 more elements
A method for producing a ready-mix soil material comprising the steps of:
- (a) crushing earth materials excavated from different work sites;
- (b) sieving the earth materials after crushing so as to obtain different raw soil material;
- (c) mixing the raw soil materials to obtain a mixed soil material having desired clay, sand and gravel contents;
- and
- (a mixing metered amounts of the mixed soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material,
- wherein crushing of the earth materials in step (a) is conducted after subjecting the earth materials to a drying treatment.
3 more elements
A method for producing a ready-mix soil material, comprising the steps of:
- (a) crushing earth materials excavated from different work sites;
- (b) sieving the earth materials after crushing so as to obtain different raw soil materials;
- (c) mixing the raw soil materials to obtain a mixed soil material having desired clay, sand and gravel contents;
- and
- (d) mixing metered amounts of the mixed soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material,
- wherein, in step (c), the raw soil materials are optionally further mixed with at least one of an additive soil material having a high sand content, and an additive soil material having a high clay content.
3 more elements
A method for producing a ready-mix soil material, comprising the steps of:
- (a) crushing earth materials excavated from different work sites;
- (b) sieving the earth materials after crushing so as to obtain different raw soil materials;
- (c) mixing the raw soil materials to obtain a mixed soil material having desired clay, sand and gravel contents;
- and
- (d) mixing metered amounts of the mixed soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material,
- wherein the mixed soil material is one of:
- a material having a clay content of about 60 wt %, a sand content of about 40 wt %, and a gravel content less than 5 wt %;
- a material having a clay content of about 40 wt %, a sand content of about 60 wt %, and a gravel content less than 5 wt %, and
- a material having a clay content of about 20 wt %, a sand content of about 80 wt % and a gravel content less than 10 wt %.
6 more elements
Dependencies are inferred from the claim text.