This disclosure provides a rubber composite for use in a variety of applications, and methods for its preparation.

An apparatus including a device which moves a first portion of a soft, damp, and/or wet slab out of alignment with a majority of the slab and thus introduces a first crack in the slab; and a device for spraying a first colored material into the first crack of the slab. The device which moves the first portion of the slab out of alignment with the rest of the slab may include a first lift bar. The device for spraying the first colored material in the first crack of the slab may include a first spray bar having a plurality of nozzles fixed thereto, arranged in a substantially straight line. In at least one embodiment, the apparatus may also include a device which moves a second portion of the slab out of alignment with the majority of the slab and thereby introduces a second crack in the slab.

An apparatus including a device which moves a first portion of a soft, damp, and/or wet slab out of alignment with a majority of the slab and thus introduces a first crack in the slab; and a device for spraying a first colored material into the first crack of the slab. The device which moves the first portion of the slab out of alignment with the rest of the slab may include a first lift bar. The device for spraying the first colored material in the first crack of the slab may include a first spray bar having a plurality of nozzles fixed thereto, arranged in a substantially straight line. In at least one embodiment, the apparatus may also include a device which moves a second portion of the slab out of alignment with the majority of the slab and thereby introduces a second crack in the slab.

A composition that may include a resin, plastic aggregate, plastic fines, and optionally fly ash. The plastic aggregates and plastic fines may be formed from recycled plastic. The composition may be utilized to repair damaged surfaces, including damages concrete surfaces. The composition may further be used in pre-formed structures. The pre-formed structures may include panels that are assembled to form an upright enclosure, such as a shelter.

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.

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.

A method to reclaim or recycle asphalt or asphalt components to produce reusable asphalt or asphalt components featuring (a) providing asphalt or asphalt components; (b) adding the asphalt or asphalt components to a solution at a temperature higher than the melting temperature of the asphalt binder; and optionally one or more of the following: grinding or breaking the asphalt to be reclaimed or recycled into chunks, millings or particulate prior to step a), c) screening or separating coarse aggregate and fine aggregate asphalt components from the solution of b), d) cleaning or removing asphalt binder and/or the solution from the coarse aggregate and fine aggregate asphalt components screened or separated in step c), and e) cleaning or removing asphalt binder from the solution of b).

Various methods for making material capable of forming structural composites are disclosed. For example, a particular method may include growing an amount of cyanotic organisms, separating cell walls of the cyanotic organisms from internal portions of the cyanotic organisms to form a purified algae extract, the purified algae extract being from the internal portions of the cyanotic organisms, and applying an effective amount of alkaline water to the purified algae extract to form a balanced algae extract having little or no chemical reactivity, wherein a pH of the alkaline water is a function of a pH of the purified algae extract.

An electroconductive polyethylene resin composition comprises: a resin component comprising a polar-group-containing polyethylene resin (A) and a polyethylene resin (B); and an electroconductive filler (E) incorporated into the resin component, wherein each of the proportions of the polar-group-containing polyethylene resin (A) and the polyethylene resin (B) in the resin component is the polar-group-containing polyethylene resin (A): 0.5 wt %-80 wt % and the polyethylene resin (B): 99.5 wt %-20 wt %, and the electroconductive polyethylene resin composition satisfies the following requirement (1): (1) surface resistivity: 10/-10.sup.10/.

A system and method for monitoring and adjusting a constant flow asphalt manufacturing process includes monitoring the ratios of recycled material to virgin material to minimize costs and adjusting the mixture in real time. Pulverized asphalt shingle (PAS) material may be used as a source of recycled asphalt oil and fed to a mixing drum with real-time monitoring while making real-time adjustments to supplement the asphalt with new asphalt oil to the mixer. The systems and methods may also be used for monitoring, metering, and supplementing recycled aggregate from recycled asphalt pavement (RAP) with new aggregate. The systems and methods may use one or more processors or programmable logic controllers (PLC) to meter the addition of new materials.