The disclosure belongs to the technical field of materials for civil construction engineering, and specifically relates to a green and low carbon emission foamed lightweight soil prepared by using serpentine, magnesium oxide and CO.sub.2 as raw materials. In the serpentine carbon sequestration foamed lightweight soil, the ingredients of raw material include: magnesium oxide, serpentine, a filler, CO.sub.2 bubbles and water.

The invention provides a marine infrastructure comprising a concrete matrix having a pH of less than 12 for use in promoting the growth of fauna and flora in aquatic environment, and methods for promoting the growth of fauna and flora in aquatic environment, including endolitic and epilitic flora and endolitic and epilitic anaerobic and aerobic flora and fauna.

The present disclosure provides an eco-friendly high-performance all-solid-waste soil-binding material and a preparation method and use method thereof, and relates to the field of weak soil solidifying agents. The eco-friendly high-performance all-solid-waste soil-binding material includes the following components in parts by weight: a slag powder: 30 parts to 60 parts, a fly ash: 10 parts to 25 parts, a steel-slag powder: 10 parts to 30 parts, an alkaline residue powder: 5 parts to 15 parts, and a lithium-battery solid waste: 5 parts to 15 parts. The implementation of the present disclosure can improve a solidification strength of the soil-binding material, reduce a cost of the soil-binding material, and makes the soil-binding material eco-friendly.

This invention relates to manufacturing briquettes, pellets and shapes from recycled asphaltic limestone powder derived from waste residential roofing products. Briquettes and pellets are manufactured through a densification process at varying temperatures, creating recycled asphalt pellets, asphalt limestone pellets and bio mass and coal fines briquettes. Various shapes, including curbs and posts, are manufactured through heat and pressure in molds. Seawalls, walkways and wall panels are manufactured by blending asphaltic limestone powders with polymer resins and extruded or pultruded into shapes.

The present disclosure provides an eco-friendly high-performance all-solid-waste soil-binding material and a preparation method and use method thereof, and relates to the field of weak soil solidifying agents. The eco-friendly high-performance all-solid-waste soil-binding material includes the following components in parts by weight: a slag powder: 30 parts to 60 parts, a fly ash: 10 parts to 25 parts, a steel-slag powder: 10 parts to 30 parts, an alkaline residue powder: 5 parts to 15 parts, and a lithium-battery solid waste: 5 parts to 15 parts. The implementation of the present disclosure can improve a solidification strength of the soil-binding material, reduce a cost of the soil-binding material, and makes the soil-binding material eco-friendly.

Spray dried homogeneous mixtures of a high molecular mass flocculating agent, a base polymer dispersion, and a protective colloid are useful for homogenously stabilizing mixtures such as dust, sand, and/or soil and produce a stabilized composition of high strength.

A method for improving the stability of a soil sample comprises a steps of: a) acquiring the soil sample, b) acquiring a cement, c) forming a cement powder (nano-cement) with an average particle size of between 2 nm and 150 nm, optionally preparing a suspension of the nano-cement in water, d) mixing the cement powder or the suspension of the cement powder in water with the soil sample in a weight ratio of between 1:100 and 1:1 of the cement powder to the soil sample, respectively, e) applying the mixture obtained in step d) to the required construction site, optionally by applying the PWS mixture.

Methods, systems and compositions for storing carbon dioxide in soil are disclosed herein. In some embodiments, the composition comprises at least 35% of cement by weight of the composition; 1-15% of lime by weight of the composition; at least 5% of a supplementary cementitious material (SCM) by weight of the composition; and carbon dioxide, wherein a weight by composition of the carbon dioxide is less than 5%. The composition can further comprise at least 35% of calcium carbonate by weight of the composition.

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 aluminosilicate Pozzolan mineral and granular material such as sand.

A method for production of a modified cement powder comprises comprising the steps of: a) acquiring batch cement, and b) forming a modified cement powder A method for improving the stability of a soil sample comprises a steps of: a) acquiring the soil sample, b) acquiring a cement, c) forming a cement powder (nano-cement), optionally preparing a suspension of the nano-cement in water, d) mixing the cement powder or the suspension of the cement powder in water with the soil sample e) applying the mixture obtained in step d) to the required construction site, optionally by applying the PWS mixtureing, f) forming the mixture at the construction site in accordance with a predetermined construction project until a structure of predetermined dimensions is obtained, g) exposing the structure obtained in step f) to an amount of water for the curing time.