A foundation system (1) and method of installing the foundation system. The system including plurality of modular slabs (3, 3A, 3B) mountable onto a gravel layer (2); and at least one horizontal isolating slab (5A, 5B, 5C) and a vertical edge portion (4) positioned with respect to the modular slabs (3A, 3A, 3B) for creating a receptacle wherein concrete is poured thereon.

An expanded multilayer integral geogrid includes a plurality of oriented strands interconnected by partially oriented junctions having an array of openings therein that is produced from a coextruded or laminated multilayer polymer starting sheet. The integral geogrid has a multilayer construction, with at least one inner layer thereof having a structure that is expanded relative to at least one other layer of the multiple layers. By virtue of the expanded inner layer structure, the expanded multilayer integral geogrid provides for increased layer compressibility under load, resulting in enhanced material properties that provide performance benefits to use of the expanded multilayer integral geogrid in soil geosynthetic reinforcement, and economic benefits compared to a like integral geogrid without an expanded inner layer structure.

A stay-in-place footing form assembly includes a plurality of inner form boards serially aligned and joined by inner joining brackets, a plurality of outer form boards serially aligned and joined by outer joining brackets, a plurality of lower spacing rails, each disposed between and connecting base brackets in the inner and outer joining brackets aligned laterally, and a plurality of upper spacing rails, each disposed between and connecting top brackets in the inner and outer joining brackets aligned laterally. The lower spacing rails include first rebar receptacle(s) for seating horizontal rebars on the rails, and the upper spacing rails include second rebar receptacle(s) for holding vertical dowel rebars therein. The inner and outer form boards are insulation boards that have an ability of absorbing lateral forces of earthquakes exerted to a concrete footing formed in the stay-in-place footing form, and an ability of insulating the concrete footing from surrounding temperatures.

A cement form includes a unitary body portion having a first surface arranged vertically and configured to support a volume of cement, a second surface arranged horizontally and configured to contact a ground support surface, a foam material, and a detachable portion. The cement form may include a connector groove formed in the weight bearing surface and extending along at least a portion of a length of the body portion. The connector groove is configured to receive a connecting member that extends between adjacent positioned cement forms. The detachable portion may be positioned adjacent to the connector groove.

Embodiments of the present disclosure are directed to reinforced syntactic structures and methods of forming the same to encase an underlying structural substrate for remediation and/or improve structural stability. The reinforced syntactic structure includes an underlying structural substrate having an outer surface and at least one reinforcement shell. The reinforcement shell is formed from at least one syntactic foam shell layer encasing at least a portion of the outer surface of the underlying structural substrate and at least one rigid noncorrosive stiffening skin coupled to the syntactic foam shell layer. The syntactic foam shell layer includes at least two opposing subshells wrapped around the underlying structural substrate and the rigid noncorrosive stiffening skin includes at least two opposing skin sections attached to the at least two opposing subshells respectively. The syntactic foam shell layer is formed from syntactic foam which includes hollow microspheres disposed within a resin matrix.

A bridge support system includes a support embankment formed from at least one light-weight material. The support embankment is arranged to support and be positioned under a footing of a bridge structure. A restraining system is operatively connected to the support embankment. The restraining system includes cross-members which are angularly offset from each other and arranged to limit at least one of lateral and vertical movement of the support embankment under high levels of excitation.

A stay-in-place footing form assembly includes a plurality of inner form boards serially aligned and joined by inner joining brackets, a plurality of outer form boards serially aligned and joined by outer joining brackets, a plurality of lower spacing rails, each disposed between and connecting base brackets in the inner and outer joining brackets aligned laterally, and a plurality of upper spacing rails, each disposed between and connecting top brackets in the inner and outer joining brackets aligned laterally. The lower spacing rails include first rebar receptacle(s) for seating horizontal rebars on the rails, and the upper spacing rails include second rebar receptacle(s) for holding vertical dowel rebars therein. The inner and outer form boards are insulation boards that have an ability of absorbing lateral forces of earthquakes exerted to a concrete footing formed in the stay-in-place footing form, and an ability of insulating the concrete footing from surrounding temperatures.

A cement form includes a unitary body portion having a first surface arranged vertically and configured to support a volume of cement, a second surface arranged horizontally and configured to contact a ground support surface, a foam material, and a detachable portion. The cement form may include a connector groove formed in the weight bearing surface and extending along at least a portion of a length of the body portion. The connector groove is configured to receive a connecting member that extends between adjacent positioned cement forms. The detachable portion may be positioned adjacent to the connector groove.

Embodiments of the present disclosure are directed to reinforced syntactic structures and methods of forming the same to encase an underlying structural substrate for remediation and/or improve structural stability. The reinforced syntactic structure includes an underlying structural substrate having an outer surface and at least one reinforcement shell. The reinforcement shell is formed from at least one syntactic foam shell layer encasing at least a portion of the outer surface of the underlying structural substrate and at least one rigid noncorrosive stiffening skin coupled to the syntactic foam shell layer. The syntactic foam shell layer includes at least two opposing subshells wrapped around the underlying structural substrate and the rigid noncorrosive stiffening skin includes at least two opposing skin sections attached to the at least two opposing subshells respectively. The syntactic foam shell layer is formed from syntactic foam which includes hollow microspheres disposed within a resin matrix.

This invention relates to a method for insulating sub-soil comprising mechanically destructuring the sub-soil, injecting an insulating material into the destructured sub-soil, and mixing the sub-soil and the insulating material. The thermal conductivity of the insulating material is strictly lower than the thermal conductivity of the sub-soil.