The invention discloses a precast glass fiber reinforced cement (GRC) composite member and a manufacturing method thereof. The member comprises a GRC surface layer, a GRC structural layer and a concrete layer which are compounded together in a bonded layer. The manufacturing method comprises the steps as follows: a), a mold is assembled and subject to pretreatment of cleaning and mold-stripping oil application; b) a mixed material of the GRC surface layer is sprayed onto a mold to obtain surface pulp of preset thickness, and the surface pulp is treated on the surface and cooled to obtain the GRC surface layer; c) a mixed material of the structural layer is sprayed onto the GRC surface layer in a layered manner for multiple times and subject to surface rolling and maintenance; d) a steel rib cage and embedded parts are mounted on the mold, concrete material is poured into the mold to be vibrated densely, is treated on the surface and then stands still and the mold is stripped after theconcrete layer is maintained to reach the mold stripping strength; and e) blemishes on the surface of the member are repaired, cleaned, polished, pickled and subject to fireproof and dustproof treatment. The precast GRC composite member simultaneously performs a GRC appearance decoration function and a bearing structure function of a concrete precast member, can be integrally lifted and fixed when being constructed, and accelerates the construction progress and reduces the engineering cost; and meanwhile, the elevation modeling is novel and rich in changes.

Precast glass fiber reinforced cement (GRC) composite member and manufacturing method thereof

The invention discloses impervious anti-cracking concrete, and belongs to the field of building materials. The key points of the technical scheme are that the impervious and anti-cracking concrete comprises the following components in parts by weight: 230-240 parts of cement, 170-190 parts of water, 790-800 parts of medium sand, 1005-1015 parts of gravel, 50-60 parts of fly ash, 70-80 parts of mineral powder, 4-5 parts of a water reducer, 10-16 parts of an anti-permeation agent, 4-5 parts of a reinforcing agent and 0.5-1 part of a coupling agent. The water reducer is a naphthalene-based waterreducer; the anti-permeation agent is active silica micro powder, diatomaceous earth and kaolin, wherein the weight ratio of the activated silica micro powder to the diatomaceous earth to the kaolin is 2:1:1; the reinforcing agent is basalt fibers and carbon fibers, wherein the weight ratio of the basalt fibers to the carbon fibers is 1:(1.1-1.3); and the coupling agent is a silane coupling agent.According to the invention, the anti-permeation and anti-cracking properties of the concrete are improved through the added anti-permeation agent, and the mechanical properties of the concrete are improved through the added reinforcing agent, so that the technical effect of improving the anti-permeation and anti-cracking properties of the concrete and improving the mechanical properties of the concrete is achieved.

Impervious anti-cracking concrete

The invention discloses a loess region slope vegetation planting guarantee masonry structure system. The system comprises vegetation planting guarantee masonry structures, multiple soil fixation grids embedded into the multiple vegetation planting guarantee masonry structures, and vegetation communities formed by vegetation planted in the soil fixation grids. Each vegetation planting guarantee masonry structure comprises multiple cross-shaped connecting components, multiple middle connecting components and multiple anchor rod mechanisms used for fixing the vegetation planting guarantee masonry structures to the step structure face or the slope surface structure face of a loess region slope. The soil fixation grids are rectangular masonry grids formed by connecting left half masonry grids and right half masonry grids which are integrally formed in a butt joint mode. The vegetation communities comprise the step vegetation communities and the slope surface vegetation communities. The invention further discloses a construction method of the loess region slope vegetation planting guarantee masonry structure system. The loess region slope vegetation planting guarantee masonry structure system and the construction method are novel and reasonable in design, low in engineering manufacturing cost, environmentally friendly, high in practicality and good in application prospect.

Loess region slope vegetation planting guarantee masonry structure system and construction method thereof

The invention discloses an assembly type energy-saving thermal-insulation composite wall board. The assembly type energy-saving thermal-insulation composite wall board comprises a middle thermal-insulation layer and a steel wire net frame, an inner wall layer and an outer wall layer are arranged on the two sides of the thermal-insulation layer respectively, the steel wire net frame comprises inclined insertion wires and steel wire net pieces, and the inclined insertion wires penetrate through the thermal-insulation layer and are fixedly connected with the steel wire net pieces arranged in the inner wall layer and the outer wall layer. The composite wall board has the advantages that the structural design is reasonable, mechanical production is completed inside a factory workshop, and no machining operation is needed during on-site construction; 2, the wall board is provided with the thermal-insulation layer and a thermal-insulation mortar layer, the thermal-insulation effect completely meets design standards, external wall thermal insulation is not needed, and the thermal-insulation mortar layer has certain strength and is used for installing a prefabricated door and window frame; assembly arms and an assembly bracket are designed to be matched with pits and protrusions arranged around the thermal-insulation layer, in this way, cold and thermal bridges are avoided, thermal resistance is increased, the thermal-insulation and energy-saving effects are improved, on-site lifting construction operation is simple, and the construction period is effectively shortened.

Assembly type energy-saving thermal-insulation composite wall board and making method thereof

The invention discloses an external wall insulation composite board The external wall insulation composite board comprises a decorative mortar layer, a lightweight concrete structure layer and an insulation layer, wherein the insulation layer is positioned between the decorative mortar layer and the lightweight concrete structure layer; criss-crossed first steel wire gauzes are inlaid in the decorative mortar layer; criss-crossed second steel wire gauzes are inlaid in the lightweight concrete structure layer; steel truss connectors penetrate in double surfaces of the insulation layer; and two ends of each steel truss connector are fixedly connected to the corresponding first steel wire gauze and the corresponding second steel wire gauze, so that a reinforcement cage with a three-dimensional-net-shaped structure is formed Through the insulation layer arranged between the decorative mortar layer and the lightweight concrete structure layer, the whole structure has a double-insulation effect; and by the reinforcement cage which has the three-dimensional-net-shaped structure and consists of the inlaid steel truss connectors, the first steel wire gauzes and the second steel wire gauzes, structure stability is improved, and an anti-seismic property is also improved

External wall insulation composite board

The invention discloses a pervious concrete brick with high strength. The brick comprises the following raw materials: ordinary portland cement, broken stones, phosphogypsum, lithium slag powder, steel slag, coal ash, silica fume, iron tailing sand, metakaolin, mixed fibre, straw powder, a water reducer, poly(styrene-co-butadiene), a silicone acrylic emulsion, redispersible latex powder, macroporous resin, an epoxy resin adhesive, ethylene diamine tetra (methylene phosphonic acid) sodium, diisopropanolamine, sodium hyposulfite, calcium lignin sulphonate, and water. The pervious concrete brick with high strength has the advantages of high compressive strength, excellent water permeability, and good frost resistance.

Pervious concrete brick with high strength

The invention discloses a concrete brick with high water permeability. The concrete brick is prepared from raw materials in parts by weight as follows: 120-200 parts of cement, 250-300 parts of gravel, 10-35 parts of ardealite, 10-50 parts of slag, 10-50 parts of steel slag, 200-350 parts of river sand, 20-50 parts of fly ash, 5-20 parts of silica fume, 10-35 parts of sintered magnesia, 2-15 parts of metakaolin, 10-40 parts of mixed fiber, 5-38 parts of straw powder, 3-8 parts of a water reducer, 0.1-0.5 parts of ethylene diamine tetra (methylene phosphonic acid) sodium and 20-50 parts of water. The concrete brick with high water permeability has very high compressive strength and excellent water permeability and can meet the use requirement of multiple fields.

Concrete brick with high water permeability

The invention discloses a dedicated fireproof insulation panel for a building external wall. The dedicated fireproof insulation panel comprises the following raw materials: cement, river sand, ferrous mill tailings, pebbles, rubbles, vitrified microsphere, oil shale, coal ash, coal gangue, silica fume, modified polystyrene granules, polyurethane particles, polycarbonate, neoprene latex, epoxy resin emulsion, water reducing agent, air entraining agent, carbon fiber, polypropylene fiber, mullite fiber, and water. The dedicated fireproof insulation panel for the building external wall provided by the invention is light in weight, low in heat conducting coefficient, good in insulation and heat-shielding performance and excellent in compressive property and fireproof performance.

Dedicated fireproof insulation panel for building external wall

The utility model discloses a brick body permeates water on road surface, include square part and four protruding portions that are located square part week side lateral wall, square part and protruding portion integrated into one piece, the protruding portion be the right trapezoid shape, its one side right angle face is connected with square part's lateral wall, the right angle face that should incline is highly the same with square part, four the outside of protruding portion all opened the rectangle recess, be located the protruding portion of rectangle recess both sides on have two sets of adjacent archs and recess respectively. The utility model discloses a protruding and the recess that correspond on two adjacent brick body permeates water on road surface's the protruding portion coordinate each other, form V font recess between the inclined plane that corresponds, form space no. 1 between the rectangle recess that corresponds, form space no. 2 between four corresponding angless of four adjacent brick body permeates water on road surface, have guaranteed the fragment of brick and have stablized the interlocking, can permeate water rapidly, have that water permeation is big, effectual a, stable in structure of permeating water, difficult advantage such as take place to become flexible.

Brick body permeates water on road surface

The invention discloses a manufacturing process for an external wall decoration hanging plate. The manufacturing process comprises the step of manufacturing a structure layer. The main raw material of the structure layer comprises coal ash, industrial wastes such as wear-resisting industrial waste molding sand, broken quarry scraps and colored quarry processing factory corner wastes. The manufactured structure layer is a color stone concrete layer or a color concrete layer or a cement mortar layer. The structure layer is filled with a 3D-structure alkali-resisting glass fiber mesh which comprises net-like alkali-resisting glass fiber cloth of the top face and the bottom face of a heat-preserving layer. Alkali-resisting glass fiber filaments arranged in the structure layer in a penetrating mode are uniformly distributed between the two pieces of the net-like alkali-resisting glass fiber cloth. Utilizing waste resources for producing the external wall decoration hanging plate, the manufacturing process has the advantage of low cost. In addition, the 3D-structure alkali-resisting glass fiber mesh is embedded into the structure layer, the related requirements of traditional external wall cladding can be met, and the strength and the shock-resistant, cracking-resistant and waterproof abilities are improved.

Tang Junhuai

Papers

Pervious concrete brick with high strength

Concrete brick with high water permeability

Dedicated fireproof insulation panel for building external wall

Brick body permeates water on road surface

Manufacturing process for external wall decoration hanging plate