6518 results about "Cement" patented technology

The invention provides methods and compositions for treating wash water from concrete production with carbon dioxide. The treated wash water can be reused as mix water in fresh batches of concrete.

The invention provides a solid waste filling material ratio optimization method of a magnesium slag-steel slag composite cementing material, and relates to the technical field of solid waste filling. The method comprises the following steps: mixing magnesium slag, steel slag, desulfurized gypsum and mineral slag to prepare a cementing material, and carrying out pretreatment and physicochemical property analysis on raw materials by taking tailings and waste rocks as filling aggregates; then designing a cementing material proportioning scheme and carrying out strength test to obtain an optimal ratio of the cementing material; then considering different slurry concentrations and plastic-to-bone ratios, and carrying out an all-solid waste filling slurry rheological test and an all-solid waste cementitious body strength test; and finally, according to the two test results, establishing a multi-objective optimization model taking the on-way resistance and the filling material cost as optimization objectives and taking the strengths of cementitious bodies at different ages as constraint conditions, and determining optimal parameters of the full-solid waste filling material. According to the invention, resource utilization of the metallurgical solid waste and the mine solid waste is realized, the bottlenecks of high carbon emission and high cost of a cement-based filling material are broken through, and a solution is provided for co-processing of the mine solid waste.

The invention relates to the technical field of constructional engineering, in particular to a cement concrete durability optimization method and system for an airport runway, and the method comprises the steps: building a data collection frame, and collecting the data of the airport runway; preprocessing the collected data, and performing preliminary analysis based on the processed data to obtain main factors influencing the durability of the cement concrete; based on the preliminary analysis result, using machine learning and deep learning technologies to construct a durability prediction model; a self-learning mechanism is introduced, a feedback loop is established, actual operation data is compared with a prediction result, and model parameters are dynamically adjusted; and based on a prediction result of the durability prediction model, combining a plurality of durability indexes, and adopting a multi-objective optimization algorithm to generate an optimal cement concrete formula and a construction process scheme so as to obtain a final durability optimization scheme. By means of the method, the defects of a traditional method in the aspects of data accuracy and model adaptability are effectively overcome, and the durability optimization level of the airport runway cement concrete is improved.

The invention provides a cement-based marine floating structure stability control method based on a dynamic water tank adjustment algorithm, which is applied to a dynamic water tank adjustment system of a cement-based marine floating structure, and the system comprises a water tank module, a sensing network, an execution mechanism and a central control unit, the method comprises the following steps: monitoring the change of the water level in the water tank module and the shaking angle data of the cement-based offshore floating structure through a sensing network; the central control unit analyzes the data acquired by the sensing network in real time, predicts the wave load change trend in a period of time in the future, simulates the stress state of the structure, and generates a target water level value of the water tank module in combination with the characteristics of the structure material; according to the target water level value and the real-time water level value, the execution mechanism is controlled to adjust the water level of the water tank module so as to achieve stability control over the cement-based offshore floating structure, water tank adjustment and material characteristics are accurately matched, control failure or structural damage can be avoided, and then the structural stability is improved.

The invention relates to the field of electric power engineering, and discloses a cement electric tower foundation differential settlement monitoring method and system, and the method comprises the steps: obtaining cement electric tower foundation bearing parameters and environmental geological data, constructing a sensing displacement array, deploying basic monitoring points, calibrating an initial reference value, and then collecting displacement data in a fixed time period, the method comprises the following steps: calculating a uniform settlement amount, generating a deformation early warning signal in combination with inclination angle information, analyzing a support weak area according to the early warning signal, determining a reinforcement priority, detecting stress distribution and a crack propagation trend, generating a settlement regulation and control instruction, analyzing instruction feedback data, identifying an abnormal settlement mode, calculating an instability risk coefficient, and compensating and correcting offset data. And analyzing a settlement evolution rule, and finally making a grading maintenance strategy. The maintenance safety and stability of the cement electric tower structure can be improved.

The invention relates to the technical field of engineering construction control, in particular to a self-adaptive control method and system for a cement mixing pile, and the method comprises the steps: setting the slurry preparation ratio parameter of a slurry preparation barrel of a feeding hopper according to the working information of the cement mixing pile, and conveying the prepared slurry to a slurry storage barrel of a discharging hopper; collecting a slurry static pressure signal of a slurry storage barrel of the blanking hopper, and monitoring the load dynamic characteristics of a stirring motor of the blanking hopper in real time in the stirring process; the slurry spraying quality parameters of the slurry are analyzed, and when the slurry spraying quality parameters reach the preset feeding standard, the slurry is conveyed to a slurry spraying pipeline to be matched with a cement mixing pile for pile forming work; when the guniting quality parameter exceeds the interval of the feeding standard, a real-time matching error is obtained; and generating a ratio correction instruction to correct the pulping ratio parameters. According to the invention, the dynamic closed-loop control of the pile forming quality of the cement mixing pile under the complex geological condition is effectively realized, and the industry bottleneck that the traditional open-loop proportioning system cannot respond to the slurry state change in real time is broken through.

The invention relates to the technical field of building materials, in particular to a Yellow River superfine sand aggregate interface reinforcing agent and a preparation and use method thereof.The interface reinforcing agent is prepared from 0.05-0.1 part of graphene oxide powder, 50-100 parts of a silane coupling agent, 50-100 parts of nano-silicon dioxide, 10-30 parts of oxalic acid and 5000-7000 parts of water; graphene oxide powder, a silane coupling agent and nano silicon dioxide are jointly used for preparing an interface modifier for performing interface modification treatment on the Yellow River superfine sand, so that the interface bonding force between the Yellow River superfine sand and a cement hydration product is enhanced.

The invention provides a cement decomposing furnace temperature prediction control method based on a KAN enhanced neural network, and belongs to the technical field of cement calcination. A CNN-LSTM-KAN network is established as an f-CaO and Nox prediction model, and a state parameter optimization objective function is established in connection with actual production requirements; and solving an optimal solution and an optimal solution interval of the state parameters of the decomposition furnace through a multi-target particle swarm optimization algorithm. A KAN-Enhanced-Informer network is established to predict the temperature of the decomposition furnace, a target function is established by combining a state optimization result with the more accurate prediction result, the less coal consumption and the reasonable alternative fuel quantity as targets, the optimal solutions of the coal feeding quantity and the alternative fuel quantity are obtained, and the optimal solutions are applied to a control model to ensure that the temperature of the decomposition furnace reaches the optimal set value. The problems that in the actual cement production process, energy consumption is too high, the yield is not ideal, and much sewage is discharged are solved.

The invention discloses low-alkali solid waste cementing material-based plant-growing concrete and a preparation method thereof. The vegetation concrete comprises a base layer framework and a surface layer material laid on the framework. Wherein the base layer framework is prepared from the following raw material components in parts by weight: 160 to 200 parts of low-alkali solid waste cement, 15 to 25 parts of phosphogypsum, 1380 to 2100 parts of mineralized concrete recycled aggregate, 62 to 102 parts of mineral admixture and 60 to 90 parts of mixing water. The surface layer material comprises the following raw material components: 1-5% of sodium alginate, 1-10% of calcium superphosphate, 1-10% of urea and the balance of soil. The mineralized concrete recycled aggregate is prepared by the following steps: soaking the concrete recycled aggregate in a diammonium hydrogen phosphate solution, and separating out the aggregate after soaking is completed, thereby obtaining the mineralized concrete recycled aggregate. According to the plant-growing concrete, alkalinity in concrete pores can be remarkably reduced, and the plant-growing concrete has stable later strength and good plant germination rate.

The invention belongs to the technical field of concrete erosion prevention, and particularly discloses concrete resistant to erosion of carbon-sulfur-silicon-calcium-type sulfate and a preparation method of the concrete. According to the concrete, on the basis of conventional components of the concrete, a plurality of components are compounded, firstly, invasion of SO4 < 2-> and CO3 < 2-> is hindered by using a dense-hydrophobic material, and secondly, the invasion of SO4 < 2-> and CO3 < 2-> is hindered by using the precipitation curing effect of an anionic layered compound on SO4 < 2-> and CO3 < 2-> and the enhancement effect of calcination operation; the process that SO4 < 2-> and CO3 < 2-> react with cement hydration products to generate carbon-sulfur-silicon-calcium stones is slowed down under the action of assisting components in the cementing material to react again to generate anionic layered compounds; thirdly, mechanical attenuation of concrete caused by non-cementation products generated by erosion of carbon-sulfur-silicon-calcium-type sulfate generated by a part is prolonged through the restraining effect of fibers with short and coarse structures, and different means are adopted for different stages of the whole erosion process through'resistance-slow-delay 'composite action systematization; and the long-acting and excellent anti-erosion effect is achieved in stages.

To provide a concrete composition with a portion of aggregate thereof replaced with carbonate light aggregate, excellent in fresh characteristics and in post-curing strength and freeze damage resistance.SOLUTION: An aspect of the present invention relates to a concrete composition including (a) cement, (b) coarse aggregate, (c) fine aggregate, (d) granulated carbonate light aggregate of alkali earth metal, (e) and water, where the carbonate light aggregate has a cumulative pore volume of 0.06 mL / g or more, each pore having a pore size of 100 nm or less.SELECTED DRAWING: None

The invention discloses basalt fiber reinforced anti-crack road concrete and a preparation method thereof, and belongs to the technical field of concrete preparation, and the preparation method specifically comprises the following steps: transferring a concrete precursor into a mold, transferring the mold to a vibration table, vibrating for 1-2 minutes, scraping the raised part of the surface by using a scraper, covering the surface of the material with a preservative film, and drying to obtain the basalt fiber reinforced anti-crack road concrete. Performing post-treatment to obtain the anti-crack concrete. The preparation method comprises the following steps: cleaning basalt fibers, activating, carrying out surface modification, curing to obtain composite basalt fibers, hydrolyzing a borosilicate monomer to prepare modified borosilane with a double-bond structure, converting the double-bond structure into an epoxy group through an epoxidation reaction to obtain a modified curing agent, and preparing the composite basalt fibers by using the modified curing agent and the modified borosilane as additives. And mixing with cement and other materials to obtain the wear-resistant, fracture-resistant and corrosion-resistant anti-crack concrete.

The invention discloses early-strength, low-resilience and high-durability sprayed concrete and a preparation method thereof. The sprayed concrete is prepared from the following components: cement, an early-strength hardening auxiliary cementing material, coarse aggregate, fine aggregate, water, an additive, a fluoride-free alkali-free high-concentration accelerator, a rheology modifier, fibers and the like. The preparation method of the sprayed concrete mainly comprises two aspects. The method comprises the following steps: (1) proportioning optimization; and (2) functional materials are applied. By optimizing the glue material amount, the water-glue ratio and the sand ratio and adopting the small-particle-size coarse aggregate, the concrete has good workability and homogeneity, the risk of pipe blocking in the pumping and spraying process is reduced, aggregate rebound in the jet flow process is reduced, and the spraying operation effect is optimized. By applying the high-concentration fluoride-free alkali-free accelerator and the early-strength hardening auxiliary cementing material, the early strength of the concrete can be effectively improved, the volume deformation is reduced, and the long-term mechanical property and durability are improved. The fiber and the rheological modifier are added, so that the rheological property of the sprayed concrete can be further effectively improved, and the rebound rate is reduced. Rapid setting of the sprayed concrete and cooperative improvement of mechanical properties and long-term performance are achieved by optimizing the mixing ratio and applying novel functional materials.

The invention belongs to the technical field of water conservancy gates, and discloses a water conservancy project flood prevention gate, method and system.The water conservancy project flood prevention gate comprises two barrier gate cement foundations, an anti-blocking mechanism and a cleaning mechanism are arranged on the two barrier gate cement foundations, and the anti-blocking mechanism comprises door bodies arranged on the sides, close to each other, of the two barrier gate cement foundations; an electric gate is slidably mounted on the inner wall of the front face of the gate body, anti-blocking assemblies are arranged at the tops of the two barrier gate cement foundations correspondingly, the electric gate is driven by a motor to ascend and descend, and automatic reciprocating motion of a cleaning strip on a sliding frame is achieved through meshing transmission of a tooth groove and a gear and the combined design of a connecting rod mechanism; according to the filter screen cleaning device, impurities attached to the filter screen are effectively removed, the filter screen is prevented from being blocked, the cleaning efficiency and the automation degree are greatly improved, frequent manual intervention is not needed, the labor intensity is reduced, meanwhile, potential risks caused by blocking of the filter screen are reduced, and it is guaranteed that water flows smoothly.

The invention belongs to the technical field of asphalt pavement construction, and discloses a municipal road reconstruction engineering asphalt pavement construction quality control method, which specifically comprises the following steps: 1, carrying out three-dimensional laser scanning surveying and mapping on longitudinal and transverse joints and crack distribution of an original cement concrete pavement in the treatment research of the original pavement; the geometrical morphology and modulus characteristics of an original pavement are accurately analyzed through three-dimensional laser scanning and a dynamic modulus test, the thickness design of an asphalt layer is optimized, adaptive materials are intelligently screened according to climate characteristics and traffic load grades of a construction area, and the performance stability of an asphalt mixture is improved; meanwhile, by means of the intelligent paving technology, the flatness and thickness uniformity of a paving layer are guaranteed, the paving temperature is accurately controlled, the paving performance of the mixture is improved, rolling parameters can be automatically adjusted according to key information such as the paving thickness and the temperature, and the uniformity of the compaction quality is improved.

The invention provides an unfired lightweight aggregate with high lithium slag doping amount and a method for synergistically preparing the unfired lightweight aggregate from lepidolite slag and lepidolite slag. The unfired lightweight aggregate with high lithium slag doping amount is prepared from the following raw materials: lithium slag and a functional additive, the lithium slag material comprises lepidolite slag and spodumene slag; the functional additive comprises a binder, an exciting agent and a mineralizing agent. Through cooperation of the lepidolite slag and the spodumene slag, the dry basis doping amount of the lithium slag in the unfired lightweight aggregate is increased to 80% or above, the cement doping amount is reduced to 15% or below, introduction of active components such as fly ash is not needed, the cement doping amount is low, the curing time is short, and high-doping-amount resource utilization of the lithium slag is achieved; the unfired lightweight aggregate has relatively high cylinder compressive strength and relatively low water absorption rate and bulk density, and meanwhile, efficient solidification of beryllium element is effectively realized in combination with a mineralizing agent; the material has excellent comprehensive performance and can be widely applied to the fields of building industry and the like.

The invention provides a low-carbon concrete coarse aggregate close packing combination grading formula and a determination method, and relates to the technical field of building materials, the formula comprises a coarse aggregate skeleton, a fine aggregate, a low-carbon cementing material, water and an admixture, the coarse aggregate skeleton is composed of four different size fractions, and the purpose is to achieve the closest packing to reduce the cement requirement and improve the cement quality. The low-carbon cementing material is composed of cement, a conventional low-carbon mineral admixture and a low-carbon composite mineral admixture, and the low-carbon composite mineral admixture comprises an active component A and a micro-filling component B. The determination method comprises the steps of system characterization and model establishment, slurry skeleton iterative collaborative optimization and formula determination. The porosity is reduced to the maximum extent by optimizing coarse aggregate grading, the cement consumption is greatly reduced, meanwhile, through the synergistic effect of the high-performance, high-proportion and low-carbon admixture, the working performance, physical and mechanical properties and durability of the concrete are ensured, carbon emission and material cost are remarkably reduced, industrial solid waste is effectively utilized, and the economic benefit is increased. And green low-carbon preparation of the concrete is realized.

The invention relates to the technical field of building materials, in particular to anti-crack mass concrete and a preparation method thereof, and the concrete is prepared from a gelling system, composite aggregate, a gradient functional additive and water according to a specific ratio. The preparation method is achieved through premixing, gradient stirring and gradient temperature control curing, the three-stage expansion effect of the compound expanding agent is utilized to be matched with the concrete shrinkage process, the hydration heat inhibitor is combined for reducing the temperature peak, basalt fiber is used for reinforcing, and the cracking risk is quantitatively evaluated, so that the 28-day restrained expansion rate of the concrete reaches 0.012% or above, the cracking risk coefficient is smaller than or equal to 0.7, and the concrete has the good crack resistance. The hydration heat peak value is reduced to 48 DEG C or below, and the cement is suitable for engineering of ultra-long structures, large-volume side walls and the like, has no harmful cracks within one year or above, has crack resistance and mechanical properties, and is wide in application prospect.

The invention relates to the technical field of mine solid waste treatment and carbon dioxide sealing and storage, and particularly discloses a system and a method for sealing and storing carbon dioxide by utilizing coal-based solid waste and mine water to prepare slurry. The system comprises a cement bin, a gangue bin, a coal ash bin, a gasified slag bin, a mine water storage tank, a stirring reaction kettle, a carbon dioxide storage tank, a slurry temporary storage tank, a vacuum pump and a slurry pump, and the stability and adsorption efficiency of carbon dioxide fixation are improved in the mode that coal-based solid waste, mine water and carbon dioxide are subjected to chemical reaction and physical adsorption; meanwhile, the prepared backfill slurry has high-strength anti-pressure ability, the stability of the backfilled underground goaf is better improved, further, coal-based solid waste and mine water are utilized for waste recycling, and the carbon dioxide storage cost is reduced.

The invention relates to the technical field of comprehensive utilization of solid waste materials, and particularly provides a circulating fluidized bed ash-based all-solid waste cementing material and a preparation method thereof. The cementing material is prepared from the following components in parts by mass: 25 to 55 parts of granulated blast furnace slag, 5 to 25 parts of CFB fly ash and 25 to 65 parts of CFB slag, an exciting agent accounting for 0-5% of the basic component is doped; the specific surface area of the cementing material is not less than 600m < 2 > / kg. Through solid waste compounding, physical grinding and chemical excitation, it is ensured that the solid waste cementing material has high cementing activity and strength; the main raw materials are industrial solid wastes, and the product can replace cement to be used for preparing concrete, prefabricated parts and the like, so that the utilization rate of the solid wastes is increased, the ecological environment problem caused by stockpiling is reduced, and the requirement of green building development in the future is met.

The present invention relates to a deep cement mixing pile construction parameter optimization method and system, a device and a medium. The method comprises: according to survey information of a construction area, determining in the construction area soil layer information corresponding to different depth segments, the soil layer information comprising soil layer types and soil layer parameters corresponding to the soil layer types; presetting an age and, for each soil layer type, presetting multiple groups of construction parameters corresponding to the soil layer type, and separately combining into input information each group of construction parameters, the set age, the soil layer type and the soil layer parameters corresponding to the soil layer type; inputting each group of input information into a constructed pile quality prediction model, so as to obtain pile quality corresponding to each group of input information, and denoting as target construction parameters the construction parameters in the input information having the pile quality satisfying a design requirement; and combining the target construction parameters of different soil layer types with each other, so as to obtain a plurality of construction parameter combinations of a mixing pile, the construction parameters in the construction parameter combinations corresponding to different soil layer types.

The invention provides a superfine light-weight high-strength filler and a preparation method thereof, and belongs to the technical field of fillers. The filler is prepared from the following components in parts by weight: 30 to 100 parts of quartz sand, 1 to 10 parts of cullet, 1 to 15 parts of Al2O3, 7 to 15 parts of Li2O, 2 to 8 parts of P2O5, 1 to 12 parts of ZrO2, 3 to 6 parts of composite nucleating agent, 5 to 10 parts of carbonate, 10 to 20 parts of feldspar and 2 to 5 parts of sulfate. The preparation method comprises the following steps: mixing the quartz sand, the cullet, the Al2O3, the Li2O, the P2O5, the ZrO2 and the composite nucleating agent, melting at a high temperature to obtain a base material, nucleating and crystallizing at different temperatures, grinding, adding the carbonate, the feldspar and the sulfate, adding the binder, granulating, and sintering to obtain the product. The lightweight high-strength filler has the characteristics of sound absorption, noise reduction, fire prevention, flame retardance, light mass density, high compressive strength, low water absorption, ecological environmental protection and the like, and is suitable for lime, gypsum and cement-based products; particularly, the high-temperature-resistant and high-strength dry-mixed mortar has a good application prospect in dry-mixed mortar products, such as ceramic tile adhesives, light plastering and self-leveling, as well as acoustic boards, sound insulation barriers, heat insulation boards and fireproof board products.

The invention relates to the technical field of cables, in particular to a fire-resistant cable suitable for a fire environment heating condition and a preparation method of the fire-resistant cable. The fire-resistant cable comprises an insulating wire core, a fire insulation layer and a sheath layer which are arranged from inside to outside. The fire insulation layer is made of ceramic silica gel cement; the ceramic silica gel cement is prepared from the following components in parts by weight: 20-40 parts of ceramic silica gel, 100-120 parts of methyl vinyl silicone rubber raw rubber, 30-50 parts of white carbon black, 4-6 parts of glass powder, 30-40 parts of aluminum oxide, 20-30 parts of zinc borate, 1-3 parts of zinc oxide, 30-40 parts of mica powder, 7-10 parts of dimethyl silicone oil and 0.3-0.5 part of a platinum catalyst. According to the invention, the mechanical strength and flexibility of the cable at high temperature are improved, and the high temperature resistance and electrical insulation performance of the fire insulation layer and the insulating layer are enhanced.

The invention discloses a real-time prediction system for the pile-forming quality of a cement mixing pile, and relates to the technical field of pile-forming quality prediction. The real-time prediction system for the pile-forming quality of the cement mixing pile comprises a pile periphery disturbance evolution analysis module, a construction and soil analysis module and a pile-forming quality prediction analysis module which are respectively used for acquiring geological three-dimensional point cloud data, soil property data and a construction parameter set of each time period; a pile periphery disturbance evolution driving index, a pile foundation response adaptability index and a construction disturbance implantation index are extracted, and a pile forming quality prediction analysis module synthesizes the three indexes to calculate and obtain a pile body pile forming quality driving index in the next time period; quality feedback processing is conducted on the set cement mixing pile through the pile body pile forming quality driving index of the next time period in the pile forming quality feedback module, so that procedural early warning and response type intervention on the pile body quality are achieved, and then the continuous stability of pile body construction and the consolidation quality reliability are remarkably improved.

The invention discloses a preparation method of a green high-performance industrial solid waste-based grouting material, and belongs to the field of industrial solid waste treatment and grouting reinforcement, and the preparation method comprises the following steps: performing dry mixing on red mud, slag, fly ash and cement which are dried and ground to specified fineness according to a preset proportion to obtain a uniform dry material; preparing a composite alkali activator from water glass and sodium hydroxide according to a molar ratio of 3: 1, premixing the composite alkali activator with water, and adding the dry material in batches to form wet slurry; and carrying out high-speed shearing and stirring on the wet slurry, and standing and curing to obtain the solid waste-based slurry which can be directly used for grouting. The method obviously improves the solid waste utilization rate, relieves the environmental pressure, and is suitable for related projects such as stratum settlement control, gushing water blocking, mine roadway broken rock mass supporting and underground cavity concrete lining crack repairing in tunnel and subway projects.

The invention discloses a flatness detection device for a prefabricated laminated slab, and belongs to the technical field of flatness detection, the flatness detection device comprises a detection table, and the top of the detection table is provided with an adjusting and placing assembly for placing the prefabricated laminated slab. According to the device, the sweeping assembly is arranged, a connecting shaft drives an air bag to periodically expand and contract through a first driving wheel, a first transmission belt, a first driven wheel, a cam, a moving plate and a second spring, and the air bag is matched with an air inlet pipe, a one-way valve and a sweeping pipe to achieve one-way conveying of airflow; air flow is sprayed out from the blowing pipe and blows dust impurities swept out by the sweeping disc to the outside of the prefabricated laminated slab, so that accumulation of the dust impurities swept out by the sweeping disc can be avoided, sweeping dead angles are avoided through the combined sweeping mode, cleanliness of the cement flat surface of the prefabricated laminated slab is guaranteed, and the influence of the dust impurities on flatness detection is reduced. And the accuracy of the flatness detection result is improved.

The invention relates to the technical field of tunnel engineering building materials, in particular to a double-slurry synchronous grouting material based on shield silty-fine sand and a preparation method of the double-slurry synchronous grouting material based on shield silty-fine sand. The liquid A is prepared from, by weight, 20%-30% of cement, 30%-50% of shield silty-fine sand, 5%-10% of bentonite, 5%-15% of mineral admixture, 0.1%-0.5% of stabilizer and 20%-30% of water, and the stabilizer is a water-soluble high-molecular polymer; the solution B is a water glass solution, and the volume ratio of the solution A to the solution B is (10-15): 1; the double-slurry synchronous grouting material further comprises a retarder and a coagulant, the retarder is citric acid, and the coagulant is a nano Ca (OH) 2 crystal nucleus. Bidirectional and gradient regulation and control of the gelation time between 5s and 100s can be realized through the coagulant and the retarder, and diversified requirements of different geological conditions and construction progress on slurry operation time are met.

A solid waste-based thin-layer masonry mortar and a preparation method and use method therefor. The solid waste-based thin-layer masonry mortar contains 98 wt% or more of solid waste. The addition of a cellulose ether to solid waste residue powder can improve the activity of each component of blast furnace slag, steel slag, and desulfurized gypsum during later use, increase the viscosity of the system, and improve the stability. By means of the interaction between the active components in the solid waste residue powder and cement, the cementitious performance of the solid waste-based thin-layer masonry mortar is improved. By defining the usage amount of each raw material, the early hydration rate of solid waste micropowder is controlled, and the setting time of a cementitious material system is adjusted. The components synergistically work and complement each other to improve the mechanical strength and stability of the solid waste-based masonry mortar. The provided solid waste-based thin-layer masonry mortar has good appearance quality, the thickness of mortar joints can be reduced from 20 mm to 2-4 mm, and excellent use performance and low costs are realized. The solid waste-based thin-layer masonry mortar has good industrial prospects and social benefits.

The invention relates to a composite interactive water-rich stratum efficient grooving ultra-deep underground diaphragm wall and a construction method. The construction method comprises the following steps of cement mixing pile groove wall reinforcement, guide wall foundation steel pipe pile built-in, guide wall novel template system installation, soft soil layer grab bucket grooving, karst cave drilling and grouting, rotary digging drill rock breaking and karst cave backfilling and double-wheel milling groove milling. The method has the beneficial effects that the groove wall is reinforced by the cement mixing piles, so that the groove wall is prevented from collapsing; the assembled drainage device is adopted, so that the construction efficiency is improved; the steel pipe piles are connected with the guide wall, so that the stability of the guide wall is improved; the steel plate groove is used as a guide wall template, so that the template turnover rate is improved; the open type steel box is placed on the groove opening, so that the risk of collapse of the groove wall is reduced; gaps and holes are blocked through drilling and grouting, then guide holes are rotationally excavated, and the karst cave is backfilled with plain concrete, so that the construction problem of grooving at the karst cave is solved; through the cooperation of the steel casing hoisting and positioning device, the construction efficiency of the rotary excavating guide hole is improved.

The invention relates to the technical field of solid waste resource utilization, and particularly discloses a waste incineration fly ash resource treatment method which comprises the following steps: firstly, efficiently removing dioxin in fly ash in a manner of adding a vanadium-cerium-loaded charcoal catalyst and co-pyrolyzing with fluidized bed combustion ash; the method comprises the following steps: preparing fly ash from fly ash, washing the fly ash with micro-nano bubble water containing carbon dioxide for dechlorination, adding an iron-manganese-silicon biochar adsorbent after dechlorination to adsorb heavy metals in the fly ash, sintering the fly ash after adsorption and fly ash under an alkaline condition to further stabilize residual soluble chlorine and heavy metals in the fly ash, and finally, recycling the residual soluble chlorine and heavy metals in the fly ash. And the treated fly ash and cement are processed into cement building blocks with good mechanical properties, so that resource utilization of the waste incineration fly ash is realized.