7 results about "Glass aggregate" patented technology

Disclosed herein are compositions and methods relating to fine aggregate for a Controlled Low-Strength Material (CLSM) recycled from a consumer waste stream of bottle glass. Such disclosed compositions may be advantageous, for example, for backfilling trenches in street cuts for utility repairs or new utility installations, such as digital cables. The disclosed compositions that incorporate the recycled glass aggregate into a CLSM that achieves satisfactory compressive strengths. The disclosed compositions are not negatively impacted by Alkali-Silica Reactivity causing expansion.

The invention provides a low-density, high-strength concrete composition, which is self-compacting and lightweight, with a low weight-fraction of aggregate to total dry raw materials, and a highly homogenous distribution of an absorptive lightweight aggregate such as glass microspheres and, optionally, polymer beads, as well as the methods for providing the composition or components. Lightweight concrete formed by the disclosed concrete composition have low density, high strength-to-weight ratios, and high R-value. The concrete has strength like that ordinarily found in structural lightweight concrete. The concrete, at the density ordinarily found in structural lightweight concrete, has a higher strength and, at the strength ordinarily found in structural lightweight concrete, a lower density.

According to the light-storing cement-based material and the preparation method thereof, through the synergistic effect of multiple light-emitting systems of the zinc sulfide particles, the strontium aluminate and the waste luminous ceramic powder, the light-emitting performance of high brightness and long afterglow is achieved, and the afterglow time can reach 12 hours or above; by adding the Fe3O4 / C composite nanoparticles, the light absorption efficiency and the energy conversion rate of the material are remarkably improved, and the luminous intensity is improved by more than 2 times compared with that of the traditional light storage cement; meanwhile, a three-dimensional light-transmitting network constructed by the light-transmitting glass aggregate and the organic transparent fiber tubes not only ensures the structural strength of the material, but also realizes efficient transmission and uniform luminescence of light; in addition, waste noctilucent ceramic powder is used as a raw material, so that the production cost is reduced, resource recycling is realized, remarkable environmental protection benefits are achieved, and the light storage cement can be widely applied to the fields of building decoration, road marking, emergency lighting and the like.

The invention relates to the technical field of ceramsite preparation through solid waste utilization, in particular to multi-source solid waste fired ceramsite and a preparation process thereof. Comprising the following steps: preparing a solid waste expanding agent; pretreating solid waste raw materials; and firing and curing the solid waste ceramsite. The activated salty mud and the micro-crack glass aggregate are prepared and are subjected to mild granulation with the slurry prepared from the dredged sediment and the limestone tailings, the activated salty mud can improve the activity of a calcium source, and the micro-crack glass aggregate can become a stress release channel in the ceramsite firing stage to avoid cracking of a green body; the multi-source solid waste ceramsite and the preparation method thereof have the advantages that the multi-source solid waste ceramsite is used as a raw material, the mud, the limestone tailings and the solid waste expanding agent release CO2 in the early stage to promote micropore formation, CaO released in the later stage, Al2O3 and SiO2 generate a low-temperature co-melt, the ceramsite is fully densified through cooperation of multiple solid wastes, the solid wastes can be fully recycled, and the prepared multi-source solid waste ceramsite has the advantages of being high in strength and light in weight.

The application is a kind of ecological water permeable brick for recycling construction waste and a preparation method thereof, the ecological water permeable brick is made of the following raw materials by weight: 450-500 parts of waste glass aggregate, 200-250 parts of dewatered municipal sludge, 75-125 parts of iron tailings powder, 75 parts of water, 26 parts of pore forming agent, 1-3 parts of nano calcium carbonate and 1-3 parts of nano titanium dioxide. The solid waste is processed into ecological water permeable brick through harmless and resourceful treatment, thereby improving the utilization rate of solid waste; the nano titanium dioxide has self-cleaning effect under light, can oxidize toxic pollutants in the air into inorganic substances such as CO2 and H2O, has the advantages of fast decomposition speed, high removal rate and the like, and has certain environmental protection advantages; the waste glass is used as aggregate to absorb solid waste, at the same time, the light absorption of the water permeable brick is increased, the use amount of nano titanium dioxide is reduced under the same effect condition, and certain economic advantages are achieved.

The invention discloses a fly ash-silicon-aluminum solid waste blending granulation and melting process. The process comprises the following steps: S1, raw material pretreatment; s2, blending granulation: mixing the pretreated high-calcium fly ash, fly ash and waste glass powder, and granulating the mixture through a granulator; s3, melting treatment is conducted, specifically, the particles obtained in the step S2 are subjected to melting treatment, and molten slag is subjected to water quenching or air cooling to form a glassy-state solid; and S4, product treatment: cooling the glassy solid obtained in the step S3, and crushing to obtain product particles. Through the synergistic effect of the silicon-aluminum solid waste and the high-calcium fly ash, the melting temperature is reduced to 1000-1200 DEG C from the traditional 1300-1500 DEG C, so that the energy consumption can be obviously reduced; dioxin is thoroughly decomposed through high temperature of melting treatment, heavy metal is stably solidified in a vitreous body network, and a melting product is vitreous body aggregate with stable performance and can be directly subjected to high-value resource utilization.

A method for forming uniform foamed glass aggregate product includes the steps ofa. providing a base foamed glass product;b. feeding the base foamed aggregate product to a hammer mill having an outlet sieve;c. processing the base foamed aggregate product in the hammer mill;d. extracting foamed aggregate product from the hammer mill; ande. separating the foamed aggregate product from the hammer mill into at least two product mixes of distinct diameter ranges.