The present invention relates to a homopolymer, copolymer, block copolymer, and statistical copolymer comprising plural polyol monomeric units. The polyol monomeric units being acrylated and acylated or acetalized. The acrylated and acylated or acetalized polyol monomeric units have an average degree of acrylation which is 1 or more, but less than the number of the hydroxyl groups of the polyol and have an average degree of acylation or acetalization which is 1 or more, but less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the homopolymers, copolymers, block copolymers, and statistical copolymers, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.

This request is about a process for assembling recycled aggregates from construction and demolition waste, such as debris and waste generated within the construction industry, such as: bad mixtures of concrete, bricks, tiles, stones, plasters, ceramics; as well as residues from the cleaning of concrete mixers in pre-mixed plants which produce pavements, foundry slags, mortars and/or concrete. Likewise, it relates to the formulation of said aggregates and to construction products obtained through them.

The present invention relates to a blend of reinforcement fibers for use in a variety of applications. In particular, the blend of reinforcement fibers can be used in cementitious compositions, such as Portland cement concrete and asphalt cement concrete compositions to reduce or preclude voids and/or cracks formed in the cement concrete upon placement. The blend of reinforcement fibers includes a plurality of first fibers and a plurality of different second fibers. The first and second fibers can be different based on coarseness/fineness, melting temperature, denier and specific chemical or material composition. In certain embodiments, one of the plurality of first fibers and the plurality of different second fibers has a melting temperature that is lower than the temperature of an asphalt cement concrete composition such that the plurality of first or different second fibers serves as a carrier/buffer to improve distribution and dispersion of the fibers in the Portland or asphalt cement concrete composition.

A method for synthesizing calcium-silicate-based porous particles (CSPPs) is described. Control over CSPP morphology and pore size is achieved through a refined solution-based synthesis, allowing loading of a variety of sealants. These particles, upon external stimuli, release the loaded sealant into the surrounding material. Methods of loading the CSPPs with loading sealant are described. The CSPPs may be used in pure form or mixed with another material to deliver self-healing, sealing and multi-functional properties to a physical structure. The composition of the CSPPs is described, along with methods of use of the CSPPs.

A hydratable cement composition which will bond to both asphalt and cementitious substrates is supplied for the repair of various surfaces. The composition comprises of a combination of Portland cement, calcium sulfoaluminate cement or calcium aluminosilicate, and an alkali metal salt activated pozzolonic powder, wherein the Portland cement content of the hydratable portion of the composition is greater than 20%. The composition is free from latex bonding agents and calcium aluminate. The composition is mixed with water to form a typical cement, mortar, or concrete consistency, placed and allowed to cure. The result is a self-adhering patch to damaged surfaces. The hydratable cement composition may also be used to fabricate items of original construction by casting into molds or forms.

A cementitious composition of one embodiment, according to the present teaching, includes, but is not limited to, a Portland cement, and at least one other cement from a group comprising, but not limited to, calcium sulfoaluminate cement, a calcium aluminosilicate cement, and calcium aluminate, wherein the Portland cement has a content of at least 20 percent based on the total weight of the non-Portland hydratable cement powder, wherein the cementitious composition bonds to asphalt.

A method for establishing a runway safety area adjacent a runway, wherein the runway safety area is a cement matrix having a plurality of foamed glass aggregate bodies suspended therein, including mixing cement and foamed glass aggregate bodies to define a composite material, forming the composite material into a runway safety area defining a plurality of foamed glass aggregate bodies suspended in a cement matrix, taxiing an aircraft over the runway safety area and crushing at least a portion of the runway safety area with the aircraft to bleed off the aircraft's kinetic energy, wherein the runway safety area has a crushing failure mode.

A water-impermeable waterproof asphalt concrete composition having styrene isoprene styrene (SIS). The composition's waterproof performance due to its high cohesion and adhesion. The composition is durable and is not easily rutted, aged and/or stripped. In addition, the composition has a performance grade of PG 82-34, and can prevent water penetration and potholes. Furthermore, the asphalt concrete for prime coating and waterproof asphalt concrete can be applied to form an integrated structure by using a mixing/feeding system and can also be easily placed on site.

Disclosed herein are composite materials, including composite building materials, comprising a polyurethane composite core in physical communication with a cementitious layer. Also disclosed are methods for producing the composite materials.

A cementitious composite for in-situ hydration includes a first layer, a second layer, a cementitious mixture, and an adhesive layer. The cementitious mixture is disposed along the first layer. The cementitious mixture includes a plurality of cementitious particles. The second layer is disposed along the cementitious mixture, opposite the first layer. The adhesive layer is positioned to secure at least one of (i) the first layer to the cementitious mixture, (ii) the second layer to the cementitious mixture, and (iii) the first layer and the second layer together. The first layer and the second layer are configured to at least partially prevent the plurality of cementitious particles from migrating out of the cementitious composite.