9 results about "Concrete masonry unit" patented technology

A concrete product having redundant tires and concrete mix is disclosed. The concrete product comprises a dry mix concrete, and redundant tires. The redundant tires include fine particles or small pieces of waste rubber or tires. The redundant tires are shredded to pass 2 millimetre sieve. The weight of the redundant tires is selected to be about two percent of the weight of the dry mix concrete. The redundant tire particles (passing 2 mm sieve) and the dry mix concrete are mixed, casted and cured for a predefined time period for obtaining a concrete block of a predefined compressive strength. The concrete product is used for making building, roadways, or constructional elements such as concrete masonry unit blocks, autoclaved aerated concrete blocks, cast-in-situ, precast concrete, Oregon barriers, Sandcrete, concrete tetrapods, composite asphalt, curb stones, interlocking tiles. The construction material helps in significant environmental benefits resulting from removing waste rubber while utilizing the waste rubber beneficially.

A vegetal concrete masonry unit and method and system for manufacturing thereof are disclosed. The masonry unit comprises treated crop residues (e.g., paddy straw, wheat straw, bagasse), a binder of hydrated lime, ground granulated blast furnace slag (GGBFS), and low-content alkali activator (2.5-20% by mass), and aggregates in a mass ratio of 1:0.1:1.5 to 1:5:5, achieving compressive strengths of 2-20 MPa and densities of 950-1900 kg / m3. The method involves alkali-treating residues at 0.1-10M NaOH for 15-1500 minutes, passing through a screw press, mixing with binder and aggregates to form C-A-S-H and N-A-S-H gels, and high-pressure molding (2-10 MPa). The system includes silos, a retention tank / screw press, pan mixer, and hydraulic press. This sustainable bio-composite utilizes agricultural / industrial wastes, reduces emissions by 80%, is energy efficient, enhances compatibility and mechanical performance, and provides thermal insulation for eco-friendly building blocks and panels.

The present invention provides a concrete masonry unit composition for automated block machines, comprising cement, aggregate, sand and microbeads with respect to total weight of the composition. After a predetermined number of days, the composition forms a plurality of concrete masonry units that meet the requirements under standards ASTM C90 as measured according to ASTM C140. Each of the concrete masonry units comprises a solid portion and at least one hollow portion boring through the solid portion. The solid portion comprises 0.25 to 0.5 percent of microbeads with respect to total weight of the composition.

A wood or manufactured wood-composite based siding used on concrete wall or concrete masonry unit (CMU, or block) construction (including, but not limited to, insulated concrete form construction) with an integrated rainscreen feature. The rainscreen feature or component is applied to, or integrated into or with, the back of the siding (i.e., the inner surface) during the manufacturing process, or in a secondary process thereafter. The features may include raised elements, strips, ridges, or wedges, with one or more channels or spaces. No job-site assembly is required, thereby reducing time and cost.

A concrete masonry unit, comprising a solid portion comprising cement, coarse aggregate, fine aggregate, and 10 percent to 25 percent of microbeads with respect to a total volume of the solid portion; and at least one hollow portion boring through the solid portion; and wherein the concrete masonry unit meets the requirements under standards ASTM C90 as measured according to ASTM C140.

The present invention relates to devices for cutting tile and scoring concrete masonry units. These devices may function without generating large amounts of dust, while still allowing high-throughput cutting and scoring. The present invention features devices for cutting tile that may allow for multiple tiles to be cut simultaneously, thus boosting efficiency. The present invention features devices for scoring concrete masonry units that may enable precision scoring of multiple faces of the CMU. After the CMU is scored by the device of the present invention, it may be easily split along the scoring plane by hitting the top of the CMU with a hammer.

A vegetal concrete masonry unit is provided which comprises cooked crop residues, binder and pulverized fuel ash in a mass ratio of 1:1:1.5 to 1:1.5:3.

A mortarless interlocking concrete masonry unit system includes concrete blocks comprising field blocks, corner blocks, end blocks, and intersecting blocks. Each block includes an interlocking geometry with protruding portions and recess portions configured to engage with adjacent blocks through approximately fifty percent overlap connections. The interlocking geometry enables mechanical bonding in longitudinal, lateral, vertical, and transverse orientations without requiring mortar joints. The system creates structural assemblies through self-aligning connections that resist shear forces while eliminating the need for skilled masonry labor. Central cavities in each block accommodate utility installations and reinforcement materials. The corner blocks provide ninety-degree connections, end blocks enable wall terminations with finished surfaces, and intersecting blocks enable perpendicular wall additions at any location. The lightweight concrete blocks are approximately fifty percent lighter than conventional masonry units while maintaining equivalent structural performance for walls, partitions, foundations, and load-bearing structures.

The invention discloses a quickly-assembled explosion-proof wall using a skeleton-imitating concrete structure, and belongs to the technical field of explosion prevention. The quickly-assembled explosion-proof wall comprises a plurality of skeleton-imitating concrete masonry units, and the skeleton-imitating concrete masonry units are spliced layer by layer to form the explosion-proof wall; a plurality of skeleton-imitating holes are formed in the skeleton-imitating concrete masonry units in the height direction; and the alloy frameworks penetrate through the skeleton-imitating holes of all the skeleton-imitating concrete masonry units in the corresponding height direction from top to bottom. According to the explosion-proof wall, a skeleton-imitating concrete structure is designed, deformation of the masonry units is increased through skeleton-imitating holes, the overall energy absorption effect is improved, and the protection quality effect on personnel and buildings is improved; according to the explosion-proof wall, the skeleton-imitating hollow concrete structure is adopted, the construction and maintenance cost is reduced through modular production and an assembly type construction mode, the construction efficiency of the explosion-proof wall is improved, and the explosion-proof wall is good in comprehensive protection performance, adjustable in protection grade, light in weight and small in size.