365results about How to "Improve waterproof and anti-seepage performance" patented technology

The invention discloses a quick-setting cement-based capillary crystalline self-repairing waterproofing material and a preparation method therefor. The quick-setting cement-based capillary crystalline self-repairing waterproofing material is prepared from the following ingredients in parts by weight: 55-75 parts of silicate cement, 25-45 parts of quartz sand, 3-10 parts of buffering agent, 4-12 parts of active ingredient A, 4-15 parts of active ingredient B, 2-6 parts of expanding agent, 1-12 parts of calcium ion supplement and 1-4 parts of water reducing agent. The waterproofing material disclosed by the invention is prepared by a simple physical mixing method, is short in initial setting time and low in chloride ion content and can infiltrate into the interior of a cement-based material to form crystals so as to block up microcracks, thus, the folding and compressing resistance and secondary infiltrating resistance are improved, and meanwhile, the cement-based material is endowed with long-lasting self-repairing performance and good waterproof and durable performance. In addition, the preparation method for the quick-setting cement-based capillary crystalline self-repairing waterproofing material is simple, has low requirements on equipment and processes and has very high application power.

This invention relates to a method for preparing ireproof shield tunnel segment material with low shrinkage and high impermeability. The material is prepared from: cement 360-400kg / m3, fly ashes 80-120 kg / m3, fine aggregate 690-720kg / m3, coarse aggregate 1100-1180 kg / m3, humidity supplementary medium 50-150 kg / m3, fibers 0.8-2 kg / m3, expanding agent 20-30 kg / m3, water (the water / colloid is 0.29-0.32), and high-performance naphthalene-based water reducer (the amount is 1.3-1.6 wt.%). The material has such advantages as good durability, high size stability, and good fireproof performance.

The invention provides ready-mixed mortar, comprising the following ingredients: 20-35 wt% of cement, 60-79 wt% of medium and fine sand, 0.05-0.3 wt% of cellulose ether high polymer, 0.1-2.0 wt% of engineering fiber, 0.1-4.0 wt% of expansive agent and 0.1-1.0 wt% of water reducer. The invention also provides a preparation method of the ready-mixed mortar. According to the invention, the problem of dry contraction of existing mortar, thus the tight connection between the mortar and concrete members is guaranteed, the waterproof and anti-permeability performance of the mortar are raised, the durability of the ready-mixed mortar is raised, and the cost is low. The preparation method of the ready-mixed mortar has the advantages of simpleness and low cost.

The invention discloses antifreeze ready mixed mortar, which comprises the following components by weight percentages: 20 to 35% of cement, 60 to 79% of medium and fine-grained sand, 0.05 to 0.3% of cellulose ether polymer, 0.1 to 2.0% of engineering fiber, 0.1 to 4.0% of bulking agent, 0.1 to 1.0% of water reducing agent and 0.1 to 1.0% of antifreeze. The antifreeze ready mixed mortar provided by the invention comprises sodium nitrite and other antifreezes, so that the problem that the internal structure of the ready mixed mortar used in winter is damaged by freezing and thawing can be effectively solved, the clotting time of mortar is obviously shortened, the antifreeze performance of mortar is improved, and the durability of mortar is improved. The antifreeze ready mixed mortar is convenient to use, a time-consuming and labor-consuming wind proofing fence which is used in winter construction is avoided being used, the preparation method is simple, and the cost is low.

The invention discloses delayed coagulation ready-mixed mortar. The delayed coagulation ready-mixed mortar comprises the following components in percentage by weight: 20-35% of cement, 60-79% of medium-fine sand, 0.05-0.3% of cellulose ether high molecular polymer, 0.1-2.0% of technical fiber, 0.1-4.0% of expanding agent, 0.1-1.0% of water reducing agent and 0.1-1.0% of retarding agent. The delayed coagulation ready-mixed mortar provided by the invention has the advantages that the coagulation time of the ready-mixed mortar can be effectively prolonged, simultaneously the hardening of the mortar can be delayed, the potential safety hazard of quality caused by secondary water addition is prevented, the delayed coagulation ready-mixed mortar is convenient to use, the secondary time and labor consuming water addition is avoided when the delayed coagulation ready-mixed mortar is used in hot weather construction, and the preparation method is simple and low in cost.

The invention discloses a high-flatness integrative solar power generation integral roof and an installation method thereof, which solve the technical problems of complicated structure, high cost and unscientific installation of the prior solar power generation roof. The high-flatness integrative solar power generation integral roof comprises solar power battery components (1), U-shaped steel drainage channels (3), roof purlins and a roof upright post. The installation method comprises the following steps that: the U-shaped steel drainage channels (3) used as rafters are parallelly and fixedly arranged on a first purlin (4)and a second purlin (5) of the roof at intervals; the solar power battery components (1) are arranged between lateral plates of the adjacent U-shaped steel drainage channels (3); the outer side edge of an aluminum-type frame (9) arranged at the lower end of each solar power battery component (1) is provided with a tail edge (2) in a extension mode; the tail edge is overlapped on the edge of the upper end of a solar power battery component arranged below the tail edge, and sealing strips (11) and (15) are additionally arranged on the edge of the upper end to form vertical connection; and the connection is sequentially installed by rows from left to right along the slope roof to obtain the high-flatness integrative solar power generation integral roof. The high-flatness integrative solar power generation integral roof realizes the perfect combination of the flatness and the integration with buildings of the height of the solar power generation roof.

The invention discloses a lightweight high-strength calcium silicate board and a preparation process thereof. The light high-strength calcium silicate board is composed of the following components, inpercentages by mass: 10-20% of cement, 35-60% of quartz sand powder, 10-20% of slaked lime powder, 5-10% of fly ash, 5-10% of reinforced cellulose, 2-5% of a filler, 5-10% of bentonite, and 1-3% of aflocculating agent. The preparation process includes the steps of fiber slurry preparation, quartz sand slurry preparation, pulping, defibrination and pre-stirring, board preparation, pre-curing, autoclaved curing, drying, and shaping. According to the lightweight high-strength calcium silicate board provided by the invention, a synergistic effect of different materials is fully played through ingenious proportioning of the materials, especially the cement, the slaked lime powder, the fly ash and the bentonite are adopted, so that the difficult problem that mortar or concrete is easily cracked because quicklime and cement are directly adopted in a traditional method can be avoided, formation of tobermorite crystals in the preparation process can be promoted, and the strength and qualification rate of the calcium silicate board can be improved.

The invention relates to a one-component flexible polymer waterproof mortar material and a method for preparing waterproof mortar by using the one-component flexible polymer waterproof mortar material. The waterproof mortar material comprises the following powder: cement, sand, rubber powder, cellulose, fiber, silica fume, a defoaming agent, a water reducing agent, a waterproof agent and the balance of a silicon-aluminum material. According to the selected value ranges, the specific powder is selected, matched and added into a stirring device for sufficiently stirring, and a finished product of the one-component flexible polymer waterproof mortar material can be obtained after evenly mixing. The method for preparing waterproof mortar comprises the steps of burdening, adding water and mixing, and treating. The one-component flexible polymer waterproof mortar material and the method have the advantages that the flexible polymer waterproof mortar obtained after evenly mixing the waterproof mortar material and the water has the durability of mortar and certain flexibility so as to prevent cracking and water seepage, and meanwhile the flexible polymer waterproof mortar is ultra-thin, high in anti-permeability, high in wear resistance, good in anti-permeability and waterproof performance, proper in strength, and good in flexibility, impact resistance and cohesive property. The preparation method of the waterproof mortar is easy to grasp and high in efficiency, and can be used for guaranteeing the product quality.

The invention relates to a waterfroof agent used in cement mortar and a preparation method thereof. The waterfroof agent comprises the following raw materials of: by weight, 5.0-15.0 parts of paraffin, 3.0-5.0 parts of silicone oil, 0.5-3.0 parts of aliphatic acid, 1.0-3.0 parts of triethanolamine, 0.4-2.5 parts of sodium hydroxide and 60.0-100.0 parts of deionized water. The preparation method comprises the following steps of: firstly respectively weighing the above raw materials, mixing, melting, heating, saponifying, cooling, homogenizing, examining, and packaging to obtain a milky thick liquid waterfroof agent. The waterproof agent is aqueous and environmentally friendly, is nontoxic and tasteless, causes no pollution, is convenient to use, and has good compatibility with cement mortar. With the addition of the waterproof agent, cured and dried cement mortar has a strong waterproof function and can effectively avoid entry of rainwater, thus guaranteeing construction quality and service life.

The invention discloses a preparation method of cement concrete early strength agent by using industrial residue, and belongs to the manufacturing method of cement additive. The industrial residue red mud is used as the main raw material, and the industrial residue acetylene sludge and desulfurized gypsum are used as auxiliary, wherein the mass percent of the materials is as follows: 75-85% of red mud, 10-15% of acetylene sludge and 5-10% of desulfurized gypsum. The preparation method is as follows: (1) drying process: drying the red mud, the acetylene sludge and desulfurized gypsum through a dryer, removing the free water; (2) weighing burdening and grinding mixing process: weighing burdening according to the raw material formulation, then putting the three raw materials in a ball mill to mix and grind until the specific surface area is not less than 600sq.m / kg; (3) low-temperature calcinating process: calcinating the mixer at a low temperature of 600 DEG C, keeping constant temperature for 1 hour, naturally cooling in atmosphere to obtain the early strength agent. The method disclosed by the invention has the advantages that the setting and hardening of the cement concrete are accelerated, the early strength is improved, the water-proof anti-permeability is good, various engineering demands are satisfied, the construction speed is accelerated, and the construction cost is reduced.