C04B18/16

COVALENTLY CROSS-LINKED LIGNOCELLULOSIC COMPOSITES AND APPLICATIONS THEREOF
20180354853 · 2018-12-13 ·

In one aspect, composite polymeric composition and related materials are described herein employing waste products from the agricultural and energy industries. Such composite polymeric compositions and materials can repurpose agricultural and petroleum waste products for various applications including, but not limited to, building and/or infrastructure materials. In some embodiments, a composite polymeric composition described herein comprises polysaccharides, lignin or combinations thereof covalently cross-linked via linkages comprising sulfur.

COVALENTLY CROSS-LINKED LIGNOCELLULOSIC COMPOSITES AND APPLICATIONS THEREOF
20180354853 · 2018-12-13 ·

In one aspect, composite polymeric composition and related materials are described herein employing waste products from the agricultural and energy industries. Such composite polymeric compositions and materials can repurpose agricultural and petroleum waste products for various applications including, but not limited to, building and/or infrastructure materials. In some embodiments, a composite polymeric composition described herein comprises polysaccharides, lignin or combinations thereof covalently cross-linked via linkages comprising sulfur.

HIGH-FLOW LIGHTWEIGHT INSULATING CONCRETE AND PREPARATION METHOD THEREOF

The present invention discloses a high-flow lightweight insulating concrete and preparation method thereof. The high-flow lightweight insulating concrete includes cement, water, admixture and environmental friendly additives, wherein the mass ratio of the cement, admixture, environmental friendly additive and water is (15-25):(60-75):(0.5-1.5):(8-12). The present invention provides a high-flow lightweight insulating concrete and preparation method thereof, using effective gel in the construction debris as raw material. The renewable environmentally friendly active materials are prepared from the construction debris and have the characteristic of high-flow, which are suitable for the cast-in-place construction of the non-load-bearing wall. The construction process has advantages of simple, reliable, lightweight, high strength and cost-effective. And the non-load-bearing wall has the advantages of sound insulation, thermal insulation, is environmental friendly and durable.

HIGH-FLOW LIGHTWEIGHT INSULATING CONCRETE AND PREPARATION METHOD THEREOF

The present invention discloses a high-flow lightweight insulating concrete and preparation method thereof. The high-flow lightweight insulating concrete includes cement, water, admixture and environmental friendly additives, wherein the mass ratio of the cement, admixture, environmental friendly additive and water is (15-25):(60-75):(0.5-1.5):(8-12). The present invention provides a high-flow lightweight insulating concrete and preparation method thereof, using effective gel in the construction debris as raw material. The renewable environmentally friendly active materials are prepared from the construction debris and have the characteristic of high-flow, which are suitable for the cast-in-place construction of the non-load-bearing wall. The construction process has advantages of simple, reliable, lightweight, high strength and cost-effective. And the non-load-bearing wall has the advantages of sound insulation, thermal insulation, is environmental friendly and durable.

Compositions and methods for cementing a wellbore using microbes or enzymes

A method of cementing a wellbore penetrating a subterranean formation comprises injecting into the wellbore a settable slurry comprising: an aqueous carrier; an aggregate; urea; a calcium source; and a calcium carbonate producing agent comprising a microbe, an enzyme, or a combination comprising at least one of the foregoing; and allowing the slurry to set.

Compositions and methods for cementing a wellbore using microbes or enzymes

A method of cementing a wellbore penetrating a subterranean formation comprises injecting into the wellbore a settable slurry comprising: an aqueous carrier; an aggregate; urea; a calcium source; and a calcium carbonate producing agent comprising a microbe, an enzyme, or a combination comprising at least one of the foregoing; and allowing the slurry to set.

Masonry blocks

Crumb Rubber augmented masonry blocks including cement, aggregate, water, and crumb rubber. Crumb rubber is extracted from scrape tires after being processed and then mixed in specified percentages with aggregate, cement and water. In the present disclosure sand, which is used in the formation of conventional blocks, is replaced with crumb rubber to produce a sand-free masonry block containing crumb rubber. The developed crumb rubber masonry blocks satisfied the ASTM non-load bearing requirements in addition to satisfying the water absorption test.

Masonry blocks

Crumb Rubber augmented masonry blocks including cement, aggregate, water, and crumb rubber. Crumb rubber is extracted from scrape tires after being processed and then mixed in specified percentages with aggregate, cement and water. In the present disclosure sand, which is used in the formation of conventional blocks, is replaced with crumb rubber to produce a sand-free masonry block containing crumb rubber. The developed crumb rubber masonry blocks satisfied the ASTM non-load bearing requirements in addition to satisfying the water absorption test.

Method of constructing an axial compression steel tubular column

An axial compression steel tubular column with internal local restraint and filled with high-strength compound concrete containing normal-strength demolished concrete lumps and a construction process. The axial compression column includes a steel tube (1), high-strength fresh concrete (2), normal-strength demolished concrete lumps (3), a spiral stirrup (4), and longitudinal erection bars (6). The spiral stirrup (4) is arranged at a middle part inside the steel tube (1). The high-strength fresh concrete (2) is poured and the normal-strength demolished concrete lumps (3) are put alternately inside the steel tube (1). A compressive strength of the high-strength fresh concrete (2) is 3090 MPa greater than that of the normal-strength demolished concrete lumps (3).

Seismic steel tubular column with internal local restraint and filled with high-strength compound concrete containing normal-strength demolished concrete lumps and construction process of such column

A seismic steel tubular column with internal local restraint and filled with high-strength compound concrete containing normal-strength demolished concrete lumps, and a construction process. The seismic column includes a steel tube (1), high-strength fresh concrete (2), normal-strength demolished concrete lumps (3), horizontal stirrups (4), and longitudinal erection bars (5). The horizontal stirrups (4) are arranged at upper and lower ends inside the steel tube (1). The high-strength fresh concrete (2) is poured and the normal-strength demolished concrete lumps (3) are put alternately inside the steel tube (1). A compressive strength of the high-strength fresh concrete (2) is 3090 MPa greater than that of the normal-strength demolished concrete lumps (3).