60results about How to "Increase late strength" patented technology

The invention relates to the technical field of building materials, and particularly discloses high-strength lightweight concrete containing hollow glass beads and a preparation method of the high-strength lightweight concrete. The high-strength lightweight concrete containing the hollow glass beads is prepared from cement, fly ash, carbon fiber grafted hollow glass beads, lightweight sand, deionized water, polypropylene fiber grafted rubber particles and a water reducing agent according to the mass ratio of (58-75): (25-38): (45-65): (20-40): (42-55): (35-55): (5-12) through mixing, mold filling, vibration molding, covering and demolding. The addition amount of the hollow glass beads is strictly controlled, the influence on the overall strength of the concrete is avoided, the density and weight of the concrete are reduced due to the addition of the light sand and the hollow glass beads, the compactness and integrity of the concrete are improved due to the synergistic effect of the two added fibers, and the raw materials have excellent cohesiveness; the concrete can effectively absorb and disperse stress, and has the advantages of excellent strength, light weight, good durability and excellent comprehensive performance.

The invention relates to the field of sprayed concrete, in particular to green low-carbon high-performance sprayed concrete using active regenerated micro powder and a preparation method and a construction process of the green low-carbon high-performance sprayed concrete. The sprayed concrete is prepared from the following components in parts by weight: 300 to 350 parts of cement, 50 to 80 parts of active regenerated micro powder, 60 to 120 parts of early strength type mineral admixture, 20 to 40 parts of rubber powder, 10 to 20 parts of hydrophobic compacting agent, 700 to 800 parts of coarse aggregate and 800 to 900 parts of fine aggregate, the mixing amount of the water reducing agent is 0.8%-1.2% of the mass of the cementing material, and the mixing amount of the fluoride-free alkali-free accelerator is 6%-9% of the mass of the cementing material; wherein the active regenerated micro powder is composed of multi-component isomeric alcohol amine and regenerated micro powder, and the dosage of the multi-component isomeric alcohol amine is 0.1%-0.5% of the mass of the cementing material. The cement consumption of the sprayed concrete can be reduced, and the requirement for high performance of the sprayed concrete is met.

The invention relates to the technical field of cement-based pavement patching materials, and particularly discloses an aluminoferrite cement-based concrete pavement patching material as well as a preparation method and application thereof. The repairing material is prepared from the following raw material components in parts by weight: 25 to 45 parts of iron aluminate cement clinker, 2 to 5 parts of Portland cement clinker, 5 to 15 parts of composite gypsum, 2 to 4 parts of calcium sulphosilicate, 2 to 4 parts of vaterite, 10 to 25 parts of mineral powder, 40 to 50 parts of fine aggregate, 0.05 to 0.25 part of triisopropanolamine or diethanolisopropanolamine, 0.75 to 1.5 parts of calcium formate and 0.5 to 1.0 part of sulfate. The strength of the repairing material can be improved in the whole age, the freeze-thaw resistance is improved, and the repairing material has good bonding strength with the pavement.

The invention provides a method for preparing a carbon sequestration underground cemented filling material by carbonizing and activating all solid wastes. Firstly, alkaline solid waste and water are compounded to obtain solid waste slurry, and an inducer and the solid waste slurry are stirred at a low speed to obtain first slurry; secondly, under the condition of continuously introducing carbon dioxide, carrying out wet grinding treatment on the first slurry to obtain second slurry, and then adding a stabilizer to continuously carry out wet grinding treatment to obtain third slurry; and finally, uniformly mixing the third slurry, semi-hydrated phosphogypsum, iron tailings and water, and vibrating for multiple times to obtain the carbon sequestration underground cemented filling material. The carbon sequestration rate of the prepared carbon sequestration underground cemented filling material can reach 12.2%-20.4%, the softening coefficient can reach 0.86, and the carbon sequestration underground cemented filling material meets the requirements of tailing concrete of C3 strength grade, F3 expansion degree and S1 shrinkage rate in JC / T 2478-2018 Mine Goaf Filling Tailing Concrete, and has a wide application prospect as a mine and underground filling material.

The invention discloses an admixture for low-shrinkage ultra-high performance concrete as well as a preparation method and application of the admixture. The admixture is prepared from the following components in parts by weight: 15 to 18 parts of silica fume, 10 to 15 parts of microbeads, 10 to 15 parts of mineral powder, 0.3 to 0.5 part of a plastic expanding agent, 4 to 6 parts of a calcium expanding agent, 4 to 6 parts of a magnesium expanding agent, 3 to 5 parts of anhydrite, 0.1 to 0.2 part of water-absorbent resin, 0.1 to 0.2 part of a de-foaming agent and 0.5 to 1 part of a water reducing agent. The admixture for the low-shrinkage type ultra-high performance concrete is excellent in adaptability, on one hand, the compressive strength and working performance of different ages can be improved, and on the other hand, the problems that due to the fact that the mixing amount of a traditional ultra-high performance concrete binding material and the using amount of cement are high, the concrete is large in shrinkage and prone to cracking are effectively solved.

The invention provides a composite mineral admixture based on iron ore tailing mud and a preparation method thereof, and the composite mineral admixture comprises the following raw materials by weight: 30-40 parts of activated iron ore tailing mud, 5-10 parts of layered ultrafine powder, 5-10 parts of a methacrylic acid-cellulose copolymer, 5-7 parts of limestone powder, 1-3 parts of a composite grinding aid, and 1-3 parts of a composite activator. According to the composite mineral admixture disclosed by the invention, the mixing amount of the composite mineral admixture in cement can be increased to the maximum extent, the use amount of cement clinker is reduced, the production cost of the cement is reduced, the composite cement has more excellent mechanical properties, volume stability and durability, and the composite mineral admixture plays a role similar to a crystal nucleus effect in a cement hydration process; and meanwhile, the hydration products tend to be uniformly distributed in the whole interface transition area, the hydration products with better stability are generated, and the anti-permeability performance is improved.

The invention relates to the technical field of building materials, and provides a preparation method of a functional fiber modifier, the modifier and application of the modifier in precast concrete.The method comprises the steps that S1, a calcium raw material is added into water to be stirred and mixed, sealed standing and aging are conducted for 20-48 h, a mixed solution is obtained, and the temperature of the water is controlled to range from 80 DEG C to 100 DEG C; s2, adding a siliceous raw material and a structure-directing agent into the mixed solution, uniformly mixing, and adding into a reaction kettle; s3, the temperature of the reaction kettle is controlled to rise, meanwhile, the stirring rotating speed is controlled to be 200-400 rpm, when the temperature rises to 180-220 DEG C, the stirring rotating speed is controlled to be 50-70 rpm, and heat preservation is conducted for a reaction; s4, after the reaction is finished, cooling, taking out slurry, filtering and drying to obtain functional fibers; and S5, dispersing the reinforcing agent in water, adding the functional fibers, and stirring for reaction to obtain the functional fiber modifier. According to the technical scheme of the invention, the functional fiber modifier has obvious rapid hardening and early strength effects, has no adverse effect on concrete performance, and can realize energy saving and steam curing-free and rapid demolding to improve the template turnover rate.

The invention discloses a modified slag sulphoaluminate cement-based ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of concrete. The modified slag sulphoaluminate cement-based ultra-high performance concrete comprises the following raw material components in parts by weight: 36 to 108 parts of sulphoaluminate cement, 24 to 72 parts of ordinary Portland cement, 720 to 924 parts of activated granulated blast furnace slag powder, 216 to 300 parts of anhydrite, 1200 to 1320 parts of quartz sand, 12 to 36 parts of nano-alumina, 9.6 to 24 parts of rare earth polycarboxylate water reducer, 13 to 28 parts of nano-SiO2 combined with silane coupling agent modified polyoxymethylene fiber, and 192 to 240 parts of water. The invention has the advantages of low hydration heat, low shrinkage, high early strength, stable late strength, etc., and can provide technical support for the further application and promotion of ultra-high performance concrete.

The invention provides a multi-source solid waste composite filling cementing material, a preparation method thereof and a filling material containing the multi-source solid waste composite filling cementing material, and belongs to the field of building materials. According to the invention, sodium sulfate is utilized to modify gypsum separated and extracted from biological oxidation liquid, raw material components and proportion are reasonably designed, gypsum, water granulated slag, fly ash and other solid wastes are mixed, and the use cost of the cementing material is effectively reduced. The multi-source solid waste composite filling cementing material comprises the following raw materials in parts by weight: 15.5-20.5 parts of gypsum powder, 10-15 parts of sodium sulfate, 22.5-27.5 parts of water granulated slag micro powder, 22.5-27.5 parts of fly ash, 2.5-7.5 parts of cement clinker, 7.5-12.5 parts of quick lime and 0.5-2 parts of an active excitant, the cementing material contains more active components, the hydration speed is high, multiple hydration products are generated, the setting time is short, and the cementing material is suitable for large-scale production. And the filling material prepared from the material has high strength index.

The invention discloses a method for preparing functional artificial aggregate from lake and reservoir deposits, and belongs to the technical field of preparation of artificial aggregate. The functional artificial aggregate with excellent mechanical properties is prepared by taking the reservoir deposits, the mineral powder and the fly ash as main raw materials, adjusting the ratio of the reservoir deposits to the mineral powder to the fly ash, combining layered sodium disilicate, nano CaO and silicon powder as an alkali activator and an additive, and doping fibers and phase change microcapsules at the same time. The problems that in the prior art, reservoir deposits are difficult to recycle and low in utilization rate, and a traditional alkali excitation system cannot control the early strength are solved.

The invention discloses a method for preparing a concrete early strength nucleating agent through partial depolymerization and modification regeneration of waste PET, and particularly relates to the technical field of concrete admixture preparation. A part of degradation products obtained after waste PET polyester is treated in dihydric alcohol and polyfunctional silane are subjected to chemical reaction to achieve construction of the high-specific-surface-area active spherical structure. The method for preparing the early strength nucleating agent has the advantages of simple steps, greenness, mildness, low cost, obvious early strength enhancing effect, no influence on or even improvement of the later strength, and effective reduction of the carbon emission in the waste consumption process, and the waste utilization rate is close to 100%. The surface of the prepared early-strength nucleating agent is rich in a large amount of active hydroxyl groups, the early-strength nucleating agent is easily complexed with calcium ions in concrete to form a calcium silicate hydrate gelling product, more nucleating sites are provided, the hydration rate and the early strength are effectively improved, and the early-strength nucleating agent has application prospects in the fields of road rescue, plateau construction and the like.

The invention discloses high-compactness low-resilience shotcrete and a preparation method thereof, and relates to the field of shotcrete, the preparation method comprises the following steps: (1) respectively stacking a cementing material, a fine aggregate and a coarse aggregate by adopting an MAA model to obtain a design ratio of each internal raw material; and (2) fully mixing the cementing material, the fine aggregate, the coarse aggregate and the elasticity reducing agent which are obtained according to the design ratio in the step (1), adding water and a water reducing agent for mixing, and doping an accelerator in a manner of mixing with pressurized air to obtain the high-compactness low-resilience sprayed concrete. The early-strength elasticity reducing agent is adopted, pumpability of the sprayed concrete is improved, early hydration of the concrete is accelerated, under the combined action of the early-strength elasticity reducing agent and the alkali-free accelerator, the early mechanical property of the sprayed concrete is rapidly improved, and the construction efficiency of the sprayed concrete is improved. And by adopting multi-section close packing, close filling structures are respectively formed in the cementing material, the fine aggregate and the coarse aggregate, so that the plastic viscosity of the slurry and the compactness of the concrete are effectively improved.

The invention provides an active repairing agent for road net-shaped cracks as well as a preparation method and application thereof, belongs to the technical field of road materials, and aims at solving the technical problems that after the road net-shaped cracks are repaired, the strength is slowly improved, and open traffic is limited after the road net-shaped cracks are repaired. The active repairing agent comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by mass: 20-40 parts of an active diluent, 20-30 parts of modified asphalt, 10-30 parts of a toughening agent, 4-8 parts of a silane coupling agent and 100 parts of filler; and the component B is a curing agent solution. The active diluent and the inorganic calcium salt curing agent are subjected to complexation reaction and interwoven to form a spatial net structure for rapid curing, the active repairing agent has the characteristics of high permeability and rapid strength formation, and traffic can be opened after net crack repairing is completed.

The invention discloses a seawater mixing self-adaptive novel cementing material as well as a preparation method and application thereof. The cementing material comprises the following components in parts by weight: 30-70 parts of Portland cement, 20-50 parts of an auxiliary cementing material, 5-15 parts of high belite calcium sulphoaluminate cement clinker and / or high belite calcium aluminoferrite cement clinker, 6-14 parts of nano particle sol, 1-3 parts of a water reducing agent, 3-7 parts of a nano particle stabilizer and 28-50 parts of mixing water. The nano particle sol comprises nano silica sol and nano aluminum sol at the same time, and the silica sol and the aluminum sol are connected through-COO <-> formed by dehydration condensation of Si-OH on the surface of the silica sol and-COOH on the surface of the aluminum sol. The cementing material disclosed by the invention has the characteristics of high early strength, steadily improved later strength, strong chloride ion curing capacity and strong chloride ion erosion resistance, and shows excellent durability and seawater erosion resistance.

This invention discloses a high-crack-resistant cement-fly ash stabilized base course material, belonging to the field of road engineering technology. The material comprises the following components by mass percentage: 2.0-3.0% cement, 16-20% fly ash, and the balance being stabilized aggregate. The cement is an external admixture, the fly ash is an internal admixture, and the gradation of the stabilized aggregate conforms to the specifications of CF-A-2L or CF-A-2S in JTG / T F20-2015. This invention, by adopting a "low cement, high fly ash" mix design, controls the 7-day unconfined compressive strength within a reasonable range of 3.5-4.5 MPa, effectively avoiding the problem of regular transverse cracks in the base course caused by excessively high early strength. Simultaneously, the high fly ash content ensures the continuous growth of the material's later strength, with its 21-day unconfined compressive strength remaining stable above 6 MPa. Its overall performance is superior to the mix ratios recommended by current standards. This invention is particularly suitable for highway base course construction in arid regions with large temperature differences, such as Xinjiang.

The present invention provides a modified fly ash, wherein the raw materials for its preparation include, by weight, 95-105 parts of fly ash, 5-25 parts of carbide slag, 0.2-3 parts of triisopropanolamine, 1-3 parts of sodium sulfate, 0.05-0.2 parts of modified graphene oxide, and 100-200 parts of water. The modified fly ash prepared by the present invention has excellent mechanical properties, high early strength and late strength, good fluidity, and meets the requirements of cement-based building materials. At the same time, the modified fly ash uses fly ash as raw material, saves costs and increases economic benefits, and realizes the resource utilization of solid waste.

The invention belongs to the technical field of ultra-high performance concrete decoration, and particularly relates to a long-acting stain-resistant crack-resistant high-strength UHPC decoration component and a preparation method thereof. The UHPC decorative component comprises a structural layer and a surface layer, the structural layer is prepared from the following raw materials: white cement, a white mineral admixture, white quartz powder, fibers, white quartz sand, a water reducing agent, a defoaming agent and water; the surface layer is prepared from the following raw materials: white cement, a white mineral admixture, white quartz powder, white quartz sand, a water reducing agent, a defoaming agent, water, a water-based stearic acid emulsion, zeolite and nano TiO2. The UHPC decorative component not only has good mechanical properties and long-acting stain resistance, but also omits the procedure of spraying a finishing agent on the UHPC decorative component, and can save the construction period and reduce environmental pollution while saving the cost.

The application discloses a low-shrinkage high-airtightness concrete special cementing material and a preparation method thereof. The special cementing material comprises 48-63wt% low-heat Portland cement clinker, 6-14wt% sulphoaluminate cement clinker, 3-5wt% light-burned magnesia, 7-10wt% sub-micron silica fume, 9-18wt% fly ash, 6-12wt% glass powder, 2-3wt% gypsum, 0.03wt% diethanol mono-isopropanol amine and 0.1wt% pre-dispersed carbon nanotubes. The special cementing material has reasonable particle size distribution, and the components produce interactive superposition effects, complement each other and promote each other, so that the cementing material after hydration is continuously compacted, and the airtight concrete prepared by the special cementing material can maintain excellent airtight performance and volume stability at each stage.

The invention provides a rapid recovery material for a cement stabilized macadam base. The rapid recovery material is prepared from the following raw materials: cement, macadam, medium-coarse sand, zeolite powder, a naphthalene water reducer, an expanding agent and emulsified asphalt in a mass ratio of (160-385): (1030-1088): (512-687): (22-58): (1-2): (4-8): (0-28) (the water-binder ratio is 0.5-0.65). The mortar has the advantages of high fluidity, fast development of early strength, high compressive strength, high breaking strength, high freezing resistance and good adhesion performance of new and old base layer interfaces, and the construction process is simple.

The application discloses a kind of high density low rebound shotcrete and preparation method thereof, it is related to shotcrete field, and preparation method includes: (1), respectively to cementitious material, fine aggregate, coarse aggregate is using MAA model to be packed and the design ratio of each raw material in interior is obtained;(2), cementitious material, fine aggregate, coarse aggregate and the rebounding agent of design ratio obtained according to step (1) are fully mixed, water, water reducing agent is mixed, then by the way of mixing with pressurized air, incorporate accelerator, obtain high density low rebound shotcrete.The application uses early strength rebounding agent, improves the pumpability of shotcrete, accelerates the early hydration of concrete, under the joint action of alkali-free accelerator, rapidly improves the early mechanical properties of shotcrete, improves shotcrete construction efficiency.Multiple close packing is used, and cementitious material, fine aggregate, coarse aggregate respectively form close packing structure, effectively improve the plastic viscosity of paste and the compactness of concrete.

The invention relates to the field of pumping concrete, and particularly discloses pipe moistening mortar for a super high-rise pumping pipeline. The super high-rise pumping pipeline lubricating mortar is prepared from the following components in parts by weight: 400 to 450 parts of cement, 900 to 1000 parts of fine aggregate, 10 to 30 parts of conditioning agent, 200 to 250 parts of water, 5 to 15 parts of additive, 100 to 120 parts of fly ash and 50 to 70 parts of slag powder. The pipe lubricating mortar for the super high-rise pumping pipeline has the advantages that the fluidity is enhanced, the pumping lubrication degree is improved, and the pumping pipeline is prevented from being easily rusted.

This invention provides a cementitious material based on steel slag solid waste, comprising fly ash, slag, steel slag, and a composite activator, wherein the composite activator includes an alkaline activator, a sulfate activator, nano-hydrated calcium silicate, and polyvinyl butyral. This invention optimizes setting time, improves early and late strength, and enhances volume stability by employing a composite activator to synergistically activate the cementitious activity of fly ash, slag, and steel slag. This cementitious material can replace a portion of cement in concrete, mortar, roadbed materials, etc., achieving efficient utilization of industrial solid waste.

The invention discloses a high-water-quick-setting foaming material for preventing and extinguishing fire and a preparation method thereof. The high-water-quick-setting foaming material comprises a component A, a component B and a component C, the component A consists of sulphoaluminate cement, phosphogypsum, an accelerator A, a retarder and a suspending agent in a mass ratio of 10: (2-4): 0.03: 0.05: 0.05; the component B is prepared from Portland cement, ardealite, an accelerator B, a retarder and a suspending agent in a mass ratio of 10: (1-3): 0.03: 0.05: 0.05; the component C is composed of a foaming agent and a foam stabilizer in a mass ratio of 1: 0.01; the component A, the component B and the component C are respectively mixed with water according to a water-cement ratio of (3-6): 1, and then are mutually mixed to prepare the high-water-quick-setting foaming material. The material not only has dual effects of fire prevention and fire extinguishment, but also has the advantages of high condensation speed, high consolidation capacity, good air leakage stoppage effect and capability of longitudinally stacking and inerting a target fire area, and the fire prevention and extinguishment effect of a mining area is ensured.

The invention discloses a preparation method of calcium sulphoaluminate modified Portland cement based on thermodynamic calculation, which comprises the following steps: preparing calcium sulphoaluminate modified Portland cement from Portland clinker, sulphoaluminate clinker and anhydrous gypsum by adopting Gibbs energy minimization thermodynamic simulation software; the method comprises the following steps: establishing a process diagram of the hydration product of a calcium hydroxide-anhydrous calcium sulphoaluminate-anhydrous gypsum ternary system along with time evolution, and obtaining that when the molar ratio of anhydrous gypsum / calcium sulphoaluminate is 8, no single-sulfur hydrated calcium sulphoaluminate is generated in the hydration product, so that the mechanical strength can be as high as possible. The calcium hydroxide is obtained by hydrating C3S and C2S, the anhydrous calcium sulphoaluminate is provided by sulphoaluminate clinker, and the formula of the calcium sulphoaluminate modified Portland cement can be obtained through back calculation, so that the situation that the traditional formula design depends on experience and trial and error is avoided, and the calcium sulphoaluminate modified Portland cement with high mechanical strength, low porosity and good stability is finally prepared.

The application discloses a kind of based on acidification-thermal activation's red mud base salt excitation cementitious material and its preparation method and application, belong to solid waste base cementitious material technical field.The red mud base salt excitation cementitious material provided by the application includes 98~99% red mud-solid waste gypsum complex, 0.2~0.5% water reducing agent and 0.5~1.8% early strength agent by mass fraction;Red mud-solid waste gypsum complex is prepared by thermal activation of acidified red mud and solid waste gypsum with mass ratio of (8~10):1, and the acidified red mud is obtained by neutralizing composite dealkalizer and Bayer red mud;Composite dealkalizer includes 60~70% carboxylic acid component and 30~40% sulfonic acid component.The utilization rate of Bayer red mud is as high as 85% or more, solving the problem of low utilization rate of Bayer red mud in the prior art;At the same time, the obtained cementitious material has good early strength and late strength, and the performance is equivalent to or even better than the existing cement mortar.

The invention relates to the technical field of cement reinforcing agents, in particular to a cement hydration accelerant as well as a preparation method and application thereof. The cement hydration accelerant is prepared from the following components in parts by mass: 20 to 55 parts of composite nucleating agent, 10 to 20 parts of inorganic salt, 15 to 30 parts of alcohol amine and water, wherein the composite nucleating agent comprises calcium silicate, carbon nitride and a polycarboxylate superplasticizer in a mass ratio of (0.5-5): (0.01-1): 1. According to the cement hydration accelerant, the early strength is effectively improved, hydration of cement is effectively promoted, the later strength is improved, the cement of the type can meet different types of application scenes, and the working efficiency is improved.

The invention discloses aluminoferrite cement and a preparation method thereof, belongs to the technical field of building materials, and aims to solve the technical problems that in the prior art, the strength of the cement cannot be remarkably improved by doping an organic water reducing agent into the aluminoferrite cement, and the rheological property and the processability cannot be improved on the premise of ensuring the high strength of the cement. The iron aluminate cement comprises iron aluminate clinker, red mud, an early strength admixture and composite latex powder. According to the early strength admixture, sodium aminobenzene sulfonate, formaldehyde and cetylnaphthalene react to prepare a long-chain water reducing agent; the water reducing agent is modified by calcium lignosulphonate and triethanolamine to obtain the early strength admixture. The preparation method comprises the following steps: coating a nanoscale inorganic filler with a core-shell polymer emulsion containing an inner-layer structure and an outer-layer structure, and carrying out spray drying to obtain the composite latex powder. The prepared aluminoferrite cement has the advantages of high strength, high water reducing effect, high hydration speed and good rheological property.

The present application relates to the field of concrete, and more specifically, it relates to a super slow setting concrete and a preparation method thereof. A super slow setting concrete comprises the following raw materials in parts by weight: 90-105 parts of water, 180-200 parts of Portland cement, 150-200 parts of admixtures, 1000-1200 parts of coarse aggregate, 700-800 parts of fine aggregate, 0-8 parts of admixtures, 15-25 parts of wheat straw liquid treatment, 8-15 parts of wheat straw solid treatment, and 1-6 parts of calcium carbonate whiskers; the preparation method of the wheat straw liquid treatment and the wheat straw solid treatment comprises the following steps: step 01: crushing wheat straw; step 02: soaking wheat straw in sodium hydroxide solution; step 03: solid-liquid separation of the material in step 02, the solid part is the wheat straw solid treatment, and the liquid part is the wheat straw liquid treatment. The present application has the advantages of improving early strength and good slow setting effect.

The invention discloses a permeable pavement material for a sponge city and a preparation method thereof, and relates to the technical field of permeable building materials, the permeable pavement material is prepared from the following components by weight: 60-80 parts of coarse aggregate, 20-40 parts of fine aggregate, 30-50 parts of Portland cement, 10-30 parts of slag, 10-20 parts of fly ash, 10-20 parts of a filler, 5-15 parts of modified polypropylene fiber, 0.5-3 parts of a water reducer, and 20-30 parts of water. According to the permeable pavement material disclosed by the invention, cyclic utilization of resources is realized, a continuous pore structure and a stable skeleton system are formed through optimal proportioning of the components and a reinforcing effect of the modified polypropylene fibers, and the permeable pavement material has excellent water permeability, relatively high mechanical strength and freeze-thaw resistance and meets the technical requirements of sponge city construction.

The invention discloses a preparation method and device of an Anshan basalt stratum grouting material, and relates to the technical field of grouting. Primarily stirring the slurry; shearing and dispersing at high speed; performance detection; and a grouting step. According to the invention, the superfine fly ash microbeads, silica fume and nano-silica are compounded, and a high-speed shearing process is adopted, so that the particle size of the slurry is remarkably reduced, the flowability of the slurry is improved, and the slurry can be smoothly injected into micro cracks of anshan basalt; the main component Portland cement clinker has the characteristics of early strength and micro-expansion; the filling effect of the secondary components silica fume and nano-silica further compacts the structure of the stone body, so that the stone body has high later strength and tight cohesiveness with bedrock; under the synergistic effect of a small amount of hydroxypropyl methyl cellulose and nano silicon dioxide, segregation and bleeding of the slurry are effectively prevented, and it is ensured that the slurry is fully filled in cracks.