System and means soil stabilization and moisture control for building foundations including methods and systems for stabilization moisture in a site for building foundation by applying soil moisture stabilization material in various forms, a preferred stabilization material being a mixture of aluninosilicate Pozzolan mineral and granular material such as sand.

System and means soil stabilization and moisture control for building foundations including methods and systems for stabilization moisture in a site for building foundation by applying soil moisture stabilization material in various forms, a preferred stabilization material being a mixture of aluninosilicate Pozzolan mineral and granular material such as sand.

A portable cofferdam system for isolating a working area from water such as a culvert. The portable cofferdam system generally includes a first sidewall and a second sidewall each having an interior side, an exterior side, an upper edge, a lower edge and a rear edge. A middle wall is connected to the sidewalls opposite of the rear edges of the sidewalls forming a substantially U-shaped structure. An opening formed between the rear edges of the first sidewall and the second sidewall to allow for positioning about or near the inlet of an object or area to be kept dry such as the inlet of a culvert.

A portable cofferdam system for isolating a working area from water such as a culvert. The portable cofferdam system generally includes a first sidewall and a second sidewall each having an interior side, an exterior side, an upper edge, a lower edge and a rear edge. A middle wall is connected to the sidewalls opposite of the rear edges of the sidewalls forming a substantially U-shaped structure. An opening formed between the rear edges of the first sidewall and the second sidewall to allow for positioning about or near the inlet of an object or area to be kept dry such as the inlet of a culvert.

System and means soil stabilization and moisture control for building foundations including methods and systems for stabilization moisture in a site for building foundation by applying soil moisture stabilization material in various forms, a preferred stabilization material being a mixture of aluninosilicate Pozzolan mineral and granular material such as sand.

System and means soil stabilization and moisture control for building foundations including methods and systems for stabilization moisture in a site for building foundation by applying soil moisture stabilization material in various forms, a preferred stabilization material being a mixture of aluninosilicate Pozzolan mineral and granular material such as sand.

A soil stabilization system for a structure can include a stem wall and floor slab disposed within a perimeter of the stem wall. An aggregate base course (ABC) layer can be disposed within a perimeter of the stem wall and below the floor slab. A ventilation opening can extend to the ABC layer, and an air exhaust system can extend between the ABC layer and an exterior of the structure. A method of soil stabilization for a structure can include measuring a moisture content of an expansive soil below a structure, drawing dry air through the ABC layer and over a surface of an expansive soil. Moisture can be removed from the expansive soil into the dry air by evaporation to create moist air, and moist air can be evacuated at an exterior of the structure.

A soil stabilization system for a structure can include a stem wall and floor slab disposed within a perimeter of the stem wall. An aggregate base course (ABC) layer can be disposed within a perimeter of the stem wall and below the floor slab. A ventilation opening can extend to the ABC layer, and an air exhaust system can extend between the ABC layer and an exterior of the structure. A method of soil stabilization for a structure can include measuring a moisture content of an expansive soil below a structure, drawing dry air through the ABC layer and over a surface of an expansive soil. Moisture can be removed from the expansive soil into the dry air by evaporation to create moist air, and moist air can be evacuated at an exterior of the structure.

Paper-based elongate structures suitable for use as lumber substitutes, articles of manufacture made thereof, kits of materials including such structures, and machines and methods for making the same. Elongate structures according to the invention include a hollow outer portion formed of corrugated fiberboard sheet material and an accordion-folded inner support formed of corrugated fiberboard sheet material. The hollow outer portion has four outer surfaces that define a rectangle when viewed in cross-section transverse to a longitudinal axis of the elongate structure. The accordion-folded inner support is enclosed within the hollow outer portion. The inner support includes a plurality of first spaced-apart peaks that contact a first inner surface of the hollow outer portion and a plurality of second spaced-apart peaks that contact an opposing second inner surface of the hollow outer portion. The accordion-folded inner support structure improves the beam strength, crush resistance and lateral strength of the elongate structure.