42results about How to "Low frost resistance" patented technology

The invention belongs to the field of recycling of construction waste, energy conservation and environment protection, and construction materials, and relates to an ecological treatment technology for construction waste, and particularly relates to the ecological treatment technology for construction waste and a preparation method for regenerated novel construction materials, which can efficiently use the construction waste and does not generate secondary pollution. The ecological treatment technology comprises the following steps of pretreating in a construction waste dump, namely, air drying the construction waste, crushing big blocks, sorting and removing soil through vibrating, adding a fertilizer in the soil to be used for filling grass planting bricks; preparing recycled aggregate, namely, crushing roughly, removing impurities, precisely crushing and simultaneously reinforcing and shaping the recycled aggregate, screening out the recycled aggregate with particle size less than 0.15mm as well as 0.15-5mm, 5-15mm and 15-25mm and micro powder for the secondary time, finally, separating the brick from concrete by a gravitational method or a hydraulic mineral beneficiation method according to different densities of the brick and concrete in the mixed recycled aggregate. Recycling and high value-added utilization of the construction waste are realized, and the ecological treatment technology gets major breakthrough in recycling industry of construction waste.

The invention provides an edible fungus chaff aerated brick. The aerated brick is prepared from the raw materials comprising, by weight, 30-35 parts of edible fungus chaff, 24-28 parts of fly ash, 15-20 parts of cement, 12-16 parts of lime, 3-5 parts of bamboo charcoal powder, 3-5 parts of oil foot, 12-18 parts of gypsum, 1-2 parts of aluminium powder, 1-2 parts of nekal, 16-19 parts of bentonite, 3-4 parts of lignocellulose, 2-3 parts of chitosan, 3-5 parts of sodium metasilicate, 8-10 parts of argil, 2-3 parts of rapeseed meal, 1-2 parts of ammonium persulfate and moderate water. The method employs the rapeseed meal as a raw material and the hydrophobicity of the brick is raised and the seepage-proofing effect is improved. Edible fungus chaff is employed as a raw material and waste materials can be utilized.

The invention discloses a cement clinker and belongs to the technical field of cement clinker production. The clinker is prepared from the following raw materials in percentage by mass: 30 to 60 percent of calcareous materials, 0 to 25 percent of siliceous materials, 10 to 40 percent of aluminum materials, 0 to 10 percent of ferrous materials and 5 to 20 percent of gypsum materials; a mineral composition of the clinker is prepared from 10 to 40 percent of C4AS, 25 to 40 percent of C2S and 10 to 30 percent of C4AF. According to the clinker disclosed by the invention, the iron content of the cement clinker is low, and the seawater erosion resisting ability of the clinker is improved; the cement clinker is especially suitable for marine engineering.

A seepage-proofing aerated concrete building block and a preparation method thereof are disclosed. The building block is composed of following raw materials in parts by weight: 20 to 25 parts of cement, 15 to 20 parts of quicklime, 10 to 15 parts of gypsum, 40 to 45 parts of fly ash, 0.1 to 0.2 part of aluminum powder, 1 to 2 parts of sulfonated lignin, 20 to 25 parts of slag, 10 to 15 parts of cotton straw powder, 10 to 15 parts of grapevine powder, 2 to 3 parts of waste engine oil, 1 to 2 parts of sodium persulfate, 2 to 3 parts of sweet rice flour, and a right amount of water. The aerated concrete building block adopts oil foot and waster engine oil components, which have been modified by initiator, to increase water-resistance ability of the building block, and the seepage-proofing ability of the building block is also largely improved. The seepage-proofing aerated concrete building block has been used in an outer wall body of a community for more than 3 years, and no seepage phenomenon has been found. But adopting conventional aerated concrete building blocks, every spring resident houses have seepage phenomenon. Sweet rice flour is used to prepare pulp, which can fill the cracks in the building block to reduce the possibility of seepage.

A porous aerated concrete building block is characterized by comprising following raw materials in parts by weight: 16 to 20 parts of cement, 20 to 25 parts of quicklime, 12 to 16 parts of gypsum, 0.45 to 0.65 part of aluminum powder, 1 to 2 parts of sodium dodecyl benzene sulfonate, 12 to 15 parts of kaolin earth, 5 to 8 parts of barite powder, 40 to 50 parts of river sands, 3 to 5 parts of dibutyl phthalate, 3 to 5 parts of polyethylene glycol, 2 to 3 parts of sodium persulfate, 4 to 7 parts of oil foot, 2 to 4 parts of chlorinated paraffin, 2 to 3 parts of phenyltriethoxysilane, and 5 to 10 parts of sodium metasilicate. In the preparation method, the aluminum powder and the surfactant commonly foam, therefore the numbers and sizes of air-holes are increased, the weight of building blocks is reduced, and the sound insulation and heat insulation effects are prominently improved.

The invention discloses a stuffing material used for preparing an artificial culture stone and a technique for preparing the artificial culture stone by using the stuffing material. The technique comprises the following steps of: preparation of a mould, preparation of slurry, preparation of the stuffing material, mould coloring, slurry spraying or filling, filling of stuffing material, secondary sputtering or filling, vibrating and shaping, baking and product packaging. The stuffing material and the technique have the following beneficial effects that the artificial culture stone produced according to the technical scheme of the invention has the following characteristics of high surface compactness, low water absorption, good weather fastness, high surface strength, high ultraviolet resistance, high freezing resistance, high aging resistance as well as even and harmonious color; in particular, the artificial culture stone made of the stuffing material is hard in the surface and low in specific gravity of the middle part and can float on a water level; the bonding surface attached on the surface of a building is rough and is beneficial for bonding, so that the artificial culture stone can be bonded more firmly and is unlikely to release; and the artificial culture stone can insulate heat and can replace a heat-insulation layer, in this way, the building cost is reduced, and the requirements of national environmental friendliness and energy saving are met.

The invention provides a tea seed episperm powder aerated concrete block and a preparation method thereof. The tea seed episperm powder aerated concrete block is prepared by the following raw materials by weight: 30-35 parts of broken block slag, 20-25 parts of fly ash, 15-18 parts of cement, 12-16 parts of lime, 2-3 parts of sodium benzoate, 15-20 parts of gypsum, 1-2 parts of aluminum powder, 20-25 parts of the tea seed episperm powder, 8-10 parts of vermiculite powder, 4-8 parts of polyvinyl alcohol, 2-3 parts of borax, 2-3 parts of waste oil, 2-3 parts of sodium persulfate, 3-5 parts of asphalt, 1-2 parts of a silane coupling agent KH570 and a proper amount of water. By adopting the tea seed episperm powder as a raw material, the weight of the aerated concrete block is lightened, and wastes can be utilized.

The invention relates to a fireproof and fire retardant aerated concrete block and a preparation method thereof. The fireproof and fire retardant aerated concrete block is prepared by the following raw materials by weight: 15-20 parts of cement, 10-15 parts of quicklime, 8-12 parts of gypsum, 20-25 parts of loess, 0.2-0.3 part of aluminum powder, 1-2 parts of cellulose ether, 20-25 parts of corn stalk powder,10-15 parts of chilli vine powder, 8-10 parts of oil residues, 3-5 parts of aluminium hydroxide, 3-5 parts of ammonium alum, 2-3 parts of ammonium persulfate and 10-15 parts of sodium metasilicate. The aerated concrete block produced by the method has increased hydrophobicity and greatly improved water permeability by adopting the oil residues and modifying by an initiator. No wall seepage phenomenon is found in over 3 years by using the block produced by the invention in external walls of small residential areas, while the seepage is found every spring in some residents whose walls are built by conventional aerated concrete blocks. Aluminium hydroxide and ammonium alum are used by the method, so that the aerated concrete block has relatively good fire retardance and can greatly reduce risks of fire.

The invention discloses a construction method for a heat-insulating layer of an environment-friendly roof, which comprises the following steps: cleaning a base layer; snapping the line for finding the slope; fixing tube roots; paving the heat-insulating layer. The step of paving the heat-insulating layer further comprises the following steps: (1) paving a layer of aluminum silicate heat-insulating material on a roof; (2) manually mixing water and cement into cement paste, uniformly coating the cement paste on expanded vermiculites and uniformly coating the expanded vermiculites with uniformly coated cement paste on the aluminum silicate heat-insulating material layer, thereby forming an expanded vermiculite heat-insulating layer; (3) finally, paving an aluminum silicate heat-insulating layer on the expanded vermiculite heat-insulating layer. The invention provides the construction method for the heat-insulating layer of the roof which is formed by coating the combined materials being difficultly influenced by high temperature, high humidity and physical vibration. According to the construction method, the economic cost can be effectively lowered, the temperature can be kept for a long time and is not influenced by the outside high temperature, high humidity, high frequency, and the like, certain safety can also be ensured, and the problems that the present heat-insulating layer is expensive and is easily influenced by the outside high temperature, high humidity, and the like, and the materials are not safe enough are solved.

The invention relates to the technical field of building materials and provides a grouting material for a sound barrier backboard. The grouting material comprises the following raw materials (by weight): 15-25 parts of Portland cement, 30-40 parts of fly ash, 50-70 parts of building rubbish, 10-15 parts of water and 0.61-1.08 parts of additives. The grouting material has advantages of wide sourcesof raw materials, high utilization rate of solid wastes, low cost, rapid hardening, early strength, slight expansion, strong bonding force, good heat stability and the like, and can be used as a binder for bonding or reinforcement of engineering equipment. The sound barrier backboard is provided with multiple reinforcing holes. after the backboard is maintained to design strength, the backboard is tensioned with pre-stress steel bars or steel strands, and then the grouting material is injected to glue the pre-stress steel bars or steel strands with the sound barrier backboard as a whole. Thus, the sound barrier backboard is safe and stable and durable.

The invention discloses an enzyme highly concentrated laundry detergent. The enzyme highly concentrated laundry detergent is prepared from, by weight, 20-32 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 20-35 parts of fatty alcohol-polyoxyethylene ether, 3-8 parts of a laundry compounded enzymatic preparation, 3-12 parts of 2-methyl-2,4-pentendiol, 0.01-0.1 part of a preservative, 0.06-1 part of an essence and 100 parts of deionized water. By the adoption of the formula, the enzyme highly concentrated laundry detergent solves all the technical difficult problems during high concentration of a conventional laundry detergent, such as gelling, flowability and layering, and meanwhile solves the problems that the conventional highly concentrated laundry detergent has poor dispersion in water and easily becomes flocculent or spherical during use. Due to high concentration, the use amount of the laundry detergent is greatly reduced, the material packaging and transporting costsand the like are obviously reduced, the adding quantity of non-functional components is also obviously reduced, and thus the production cost is obviously reduced.

The invention relates to an inner support device of a basement precast slab mold and a construction method. The device is used for supporting between a first precast slab and a second precast slab oppositely arranged; the first precast slab and the second precast slab are vertically arranged on the edge of a basement cushion layer; and the inner support device of the basement precast slab mold comprises at least one first stand column vertically arranged in a basement and bonded on the first precast slab, at least one second stand column vertically arranged in the basement and bonded on the second precast slab, at least one first hinge piece fixed on the first stand column, at least one second hinge piece arranged corresponding to the first hinge piece and fixed on the second stand column, and at least one support pipe capable of adjusting the length, connected between the first hinge piece and the second hinge piece and supported between the first stand column and the second stand column. The device is convenient in disassembly and capable of recycling.

The invention relates to the material field, in particular to a landscape model and a method for making a landscape model on the ground or wall. The landscape model comprises the following raw materials by weight: 350-500 parts of Portland cement, 20-65 parts of bentonite, 10-25 parts of lignocellulose, 400-700 parts of quartz sand, and 37-45 parts of anti-crack rubber powder. Portland cement hasgood frost resistance and small dry shrinkage; bentonite has the functions of improving concrete performance, saving water, regulating the strength grade of concrete and the like, and can increase thefluidity, cohesiveness and water retention properties of concrete. Lignocellulose has the advantages of uniform thermal expansion, and no peeling or cracking, and can increase the support force and durability of the landscape model. The landscape model is in an environment exposed to the sun and rain and is constantly run over by automobiles, the anti-crack rubber powder improves the impact resistance and fracture resistance of the landscape model, and improves the wear resistance and weather resistance.