111 results about "Cement cure" patented technology

The invention discloses a waste incineration fly ash treatment device and method, and relates to the technical field of waste treatment.The waste incineration fly ash treatment device comprises a combustion furnace, a TiO2 raw material bin, a waste heat boiler, a first screw extrusion mechanism, a cooling mechanism, a mixing mechanism, a lime and gravel raw material bin, a stabilizer raw material bin, a water storage bin, a second screw extrusion mechanism, a concrete block preparation machine and a supporting frame structure; a material guiding base is installed at the bottom of the inner wall of the combustion furnace, an inclined arc-shaped groove is formed in the top of the material guiding base, a combustor is installed on one side of the combustion furnace, and the fire outlet end of the combustor corresponds to the top of the arc-shaped groove in position. According to the device and the method, the fly ash can be subjected to combustion treatment in a certain temperature environment, chlorine elements in the fly ash are effectively removed, the mode that in the prior art, the chlorine elements in the fly ash are removed in a water washing and acid pickling mode is replaced, the phenomenon that pollutants such as heavy metal migrate from a solid phase to a liquid phase is avoided, and cement solidification operation on the waste incineration fly ash is achieved.

The invention relates to the technical field of building engineering materials, and discloses a slag-based clay curing agent, which is prepared from the following raw materials in parts by weight: 15 to 25 parts of cement, 30 to 40 parts of slag powder, 20 to 30 parts of steel slag powder, 10 to 20 parts of regenerated micro powder, 10 to 15 parts of phosphogypsum and 5 to 10 parts of additives. The slag-based clay curing agent can be prepared into a cured soil mixture for road engineering roadbed filler, can also be prepared into liquid cured soil with high flowability to be applied to underground engineering parts such as narrow fat grooves and holes where plain soil is difficult to backfill, and can be used as a cementing material for replacing cement to be used for producing regenerated products such as regenerated baking-free bricks. Industrial solid wastes (blast furnace slag, steel slag, ardealite and the like) are mainly adopted as main raw materials to prepare the clay curing agent, and compared with a common cement curing agent, resource utilization of bulk solid wastes such as steel slag, ardealite and the like in the industrial solid wastes, waste clay and construction waste regenerated micro powder is achieved, and the purpose of carbon reduction is achieved.

The invention discloses an ardealite-based flow-state self-compacting roadbed filling material as well as a preparation method and a construction method thereof. The roadbed filling material comprises the following components in percentage by mass: 20-30% of modified ardealite, 15-25% of modified solid waste micro powder, 20-60% of a cement curing agent and 0.5-1.2% of a thickening time control agent, the modified ardealite is obtained by calcining solid waste ardealite at 600-800 DEG C for 2-4 hours; the modified solid waste micro powder is obtained by mixing and grinding slag and steel slag. The solid waste ardealite is modified and combined with the steel slag and the mineral slag to form an ardealite-mineral slag-steel slag ternary synergistic curing system, the rheological property and the early strength of the material are remarkably improved by combining the cement curing agent, and the fluidity and the setting time of the slurry are effectively regulated and controlled through the thickening time control agent; the self-compaction performance and construction efficiency in the construction process are guaranteed, meanwhile, the consumption amount of solid waste ardealite is increased, the cement consumption and carbon emission are reduced, and the self-compaction ardealite concrete can be suitable for construction under complex working conditions such as narrow space or special geological conditions.

The invention relates to the technical field of construction engineering, in particular to a preparation method of a full-replacement variable-cross-section cement-soil pile. According to the cement soil pile, a long spiral drilling machine is adopted for drilling a hole in a foundation soil layer, a drill rod is rotated when lifted, and under the action of a cutting tool bit of a special drill bit, the drill rod is rotated, lifted and pumps cement soil slurry at the same time, so that a variable cross-section shape can be formed in the required position of a pile body. Holes are firstly formed, soil is taken out, water, cement, a curing agent and the like are added for stirring outside the holes, and then the soil is poured into pile holes under pressure, so that the full-replacement variable-cross-section cement-soil pile is formed. The novel replacement type variable-cross-section cement-soil pile is formed, the problem that stirring of a stirring pile is not uniform when the stirring pile meets a clay layer is solved, and the construction quality of the cement-soil pile is improved; the bearing capacity of the cement-soil pile is improved through the variable cross section; compared with an in-situ stirring method, the full-replacement cement-soil pile can reduce cement consumption, and conforms to the policy of energy conservation and emission reduction.

The invention provides a cement-based material for immobilizing a neutron activation material, and belongs to the technical field of immobilizing materials for treating radioactive nuclear waste, the cement-based material comprises 5-10 parts of boron nitride, 80-120 parts of a gel material, 50-80 parts of a boric acid solution, 8-20 parts of an additive, 0.2-3 parts of a nucleating agent, 0.5-2 parts of a water reducing agent and 0.5-3 parts of a foaming agent, the concentration of the boric acid solution is 3-6 mol / L, the additive comprises sodium hydroxide and sodium aluminate, and the foaming agent comprises sodium hydroxide and sodium aluminate. The nucleating agent comprises one or more of synthetic hydrated calcium silicate gel, layered double hydroxides and a carbon nanomaterial. The admixture and boric acid are jointly added into the gel material, sodium hydroxide in the admixture can adjust the occurrence state of borate, sodium aluminate can promote formation of hydration products such as ettringite, and therefore the content of boron and hydrogen in a cement solidified body is effectively increased, and the shielding capacity of the cement solidified body for neutron rays is improved.

The utility model discloses a cement curing box with a water level control function. The cement curing box with the water level control function comprises a curing box body, a floating assembly, a communicating vessel, a humidifier, a box cover assembly, a water level control assembly, an atomization assembly, a cavity, a ventilation pipe and a humidification head. Wherein the floating assemblies and the humidifiers are arranged on the two sides of an inner cavity of the curing box body and are vertically connected with the breather pipes through the communicating vessels, so that water in the water tank can be introduced into the humidifiers, and then the water level of the humidifier water tank of the cement curing box can be fully automatically controlled through the internal water level control assembly; according to the device, water shortage of the humidifier caused by human factors and influence on test results are avoided, meanwhile, water flow entering the device flows into the atomization assembly from the chamber and then is pushed out of the box cover assembly, and meanwhile, water vapor is uniformly sprayed on cement through the breather pipe, so that humidification is more uniform, and the stability of the test is further ensured.

The present invention discloses a novel 170L low- to medium-level radioactive waste compression steel barrel, comprising a barrel body and a barrel cover buckled on the barrel body, two or more annular ribs are arranged on the side wall of the barrel body, and an annular central protrusion and two or more linear protrusions extending outward from the annular central protrusion are arranged on the barrel bottom. The novel 170L low- to medium-level radioactive waste compression steel barrel disclosed by the present invention does not need to be perforated in the compression barrel during the overpressure process, and can achieve complete containment of the waste, and is suitable for overpressure treatment of general low- to medium-level radioactive solid waste, such as incineration ash, steel, salt slag, cement solidification, etc.

The utility model belongs to municipal engineering technical field, concretely relates to a kind of shallow soft soil subgrade treatment combination structure in narrow site, comprising: replacement boundary line, roadbed replacement base layer, replacement demarcation line, ground line, excavation replacement slope line, cement soil mixing pile solid pile, cement soil mixing pile empty pile, cement solidification area and replacement granular material.Excavation replacement slope line starts from replacement demarcation line, and ends in replacement boundary line;Cement soil mixing pile solid pile is located below the area inside replacement boundary line road, its pile bottom is below replacement demarcation line, and pile top is cut off in excavation replacement slope line;Cement soil mixing pile empty pile is only as the "virtual section" that cement soil mixing pile solid pile body extends upwards;Cement solidification area is the area that replacement boundary line, cement soil mixing pile solid pile bottom and excavation replacement slope line, ground line are enclosed to form.The utility model can reduce the range of slope excavation, reduce the influence of excavation replacement subgrade treatment to surrounding environment and building structures.

The application provides a kind of cement-like solidification characteristics and mineral flavor seaweed mayonnaise and its preparation method, based on the principle of multistage homogenization in cement production, heat treatment and particle grading, porous activated carbon particles prepared by carbonization of brown algae fermentation are graded and matched, combined with ladder type homogenization emulsification process, the cement-like solidification gel characteristics are realized;The activated carbon particles of brown algae are calcined at high temperature to form a multistage pore structure, and form a cement-like mineral flavor in cooperation with black pepper powder, smoked chili powder, clove powder, litsea cubeba powder, catnip powder and garlic powder, etc.The product prepared by the application has unique touch, low-fat characteristics and functional dietary fiber, and is suitable for building theme catering and health food field.

The invention discloses a cement solidification composite pile foundation capable of improving horizontal bearing capacity and a construction method. The cement solidification composite pile foundation capable of improving the horizontal bearing capacity and the construction method can effectively improve the horizontal bearing capacity of a pile foundation. A cement solidification composite pile foundation capable of improving horizontal bearing capacity comprises a prestress high-strength concrete pipe pile. The upper end of the sludge solidification reinforcement body is flush with or close to the sludge surface, the prestressed high-strength concrete pipe pile penetrates through the sludge solidification reinforcement body, the distance between the top surface and the bottom surface of the sludge solidification reinforcement body is 3-10 times of the outer diameter of the high-strength concrete pipe pile, and the lower end of the prestressed high-strength concrete pipe pile is inserted into a soil layer below the sludge solidification reinforcement body.

The invention discloses an efficient drilling process for a coal mine working face bottom plate oil type gas ground horizontal well, which comprises the following steps of: 1, drilling downwards along a working face stratum by using a drill rod, and continuously mixing and extruding cement paste in the drill rod and discharging the cement paste outwards in the process that the drill rod rotates clockwise to drill, so that a cement protection layer is formed on a hole wall; secondly, after drilling is completed, a drill rod is driven to rotate anticlockwise and pulled out upwards, and in the process, the drill rod is heated, cement on the hole wall is dried, and the cement curing process is accelerated; according to the efficient drilling technology for the coal mine working face bottom plate oil type gas ground horizontal well, the hole wall can be coated with cement while drilling is conducted in a stratum, so that the hole wall strength is effectively improved, the hole collapse condition is effectively avoided, and the device can emit heat and effectively improve the cement hardening speed.

This invention discloses a numerical simulation method for the maintenance and construction of semi-flexible pavement based on dual-scale coupling, comprising: determining the dimensions of the milled and repaved section based on the original pavement structure obtained by three-dimensional ground-penetrating radar and falling-weight deflectometer; establishing a finite element model for the original pavement structure; simulating the semi-flexible layer after milling and repaving using discrete element method and coupling it into the finite element model to construct a dual-scale coupled model; performing simulation calculations on the compaction and molding of large-void parent asphalt mixture; conducting simulation derivation of self-leveling cement slurry filling based on the construction process and the dual-scale coupled model; establishing a discrete element numerical model for cement curing to characterize cement curing behavior; and evaluating and guiding the maintenance of the semi-flexible pavement based on the dual-scale coupled model. This invention realizes process control and performance evaluation during the construction period of semi-flexible pavement and guidance for maintenance and repair during service life, making up for the shortcomings of high testing costs and insufficient theoretical data for different construction conditions in semi-flexible pavement.

This application discloses a cement curing box with adjustable shelves, belonging to the technical field of building material curing equipment. It includes a cement curing box and shelves, each shelf consisting of a mounting plate and round rods. Multiple round rods are fixedly connected between every two mounting plates. Each shelf is connected to the cement curing box via an adjustment mechanism and is movably connected to the inner wall of the cement curing box. This application features a novel design and ingenious device. By designing adjustable shelves inside the cement curing box, the shelf height of the corresponding area can be adjusted when storing and retrieving cement test blocks, facilitating the storage and retrieval of cement test blocks. After storing cement test blocks, the shelf height of the corresponding area can be lowered to allow for more shelves to be set up inside the box for storing cement test blocks. Compared to fixed shelves, this solves the problems of only being able to store a small number of test blocks, non-adjustable shelf height, low space utilization, resulting in limited effective placement space for cement test blocks and difficulty in simultaneously curing a large number of cement test blocks.

The present invention discloses a low-cost clinker-free cementitious material and its application, which belongs to the field of building materials. Taking the mass of the clinker-free cementitious material as 100%, it includes the following raw materials in percentage by mass: 20-60% of water-quenched blast furnace slag, 10-40% of garbage incineration bottom ash, 20% of washed garbage incineration fly ash, and the balance is desulfurization gypsum. The low-cost clinker-free cementitious material is used to replace cement solidification stabilization on a large scale in preliminary combination with cementitious filling mining technology, or to provide a low-cost cement-free clinker cementitious material for preparing concrete for the construction industry. The low-cost clinker-free cementitious material provided by the present invention has a simple composition and a high overall economic benefit, improves the recycling rate of washed garbage incineration fly ash and garbage incineration bottom ash, and synergistically recycles washed garbage incineration fly ash and garbage incineration bottom ash that are more difficult to comprehensively utilize.

The application discloses a simulation device and method for evaluating the influence of perforation impact load on cement ring integrity, which comprises the following steps: placing cement slurry into a cement curing experimental device to form a cement ring; performing a perforation impact load experiment on the cement ring by using a simulation perforation impact load device; and detecting the integrity of the cement ring after the perforation impact load experiment is completed. The simulation device can simulate the perforation impact load on the cement ring sealing integrity experiment, the impact load caused by the perforation impact is considered in the simulation device, the influence of the perforation impact load on the cement ring sealing integrity can be truly reflected, and the simulation is not limited to software. By setting double-layer fixed supports and a control inclined angle support, the simulation device can simulate and evaluate the influence of the perforation impact load on the cement ring sealing integrity under different well inclination angles, and the blank of the prior art is made up.

The present invention discloses a transportation method for a bionic worm creep extrusion type solidified soil transportation pipeline structure. It belongs to the fields of soil solidification and material transportation, etc., and is composed of equipment such as a rigid outer skeleton, a transmission connecting rod, and a ductile inner pipe. Its operation steps are as follows: According to the actual situation of the construction site and the transportation distance, set up the bionic worm creep extrusion type solidified soil transportation pipeline at the turning point or the undulating place, and fasten the two ends to the ordinary pipeline with hose clamps; set the motor rotation phase of each section of the bionic worm creep extrusion type solidified soil transportation pipeline; pump the mixed cement solidified soil at the starting point and start long-distance transportation; after one-time pouring is completed, it is necessary to pour clear water at the starting pumping point for pipeline cleaning to prevent the residual hardening of the cement solidified soil and block the pipeline. As an auxiliary equipment for the preparation method of the cement solidified soil, which is a filling material made from local materials and is green and environmentally friendly, the present invention can better apply it in the case of a narrow construction site, and has the characteristics of simple installation and construction and reliable performance.

The invention relates to the technical field of landfill hazardous waste treatment, and provides a spraying and soaking device and method for curing waste catalyst heavy metal, which can solve the problem that large blocky and granular catalysts are difficult to cure by traditional cement through a process of spraying lime water and fully contacting and soaking waste in spiral stirring. According to the technology, for waste with toxic leaching (heavy metal and corrosive PH) exceeding the standard, especially for mercury and arsenic type heavy metal which is particularly difficult to treat, the use amount of a curing agent is reduced, the operation cost is reduced, and the treatment efficiency is greatly improved, the invention discloses a spraying and soaking device for curing heavy metal in a waste catalyst. The spraying and soaking device comprises a bearing frame body, a spiral rotating transmission shaft, a medicament box, a spraying and dosing system and a discharging assembly, by means of the technical scheme, the problems that in the prior art, for heavy metal which is particularly difficult to treat mercury and arsenic, the use amount of curing agents is large, the operation cost is high, and the treatment efficiency is low are solved.

This application discloses a density-based mix design method for fluidized solidified soil, comprising: determining the design density of the fluidized solidified soil; determining the water-to-solid ratio of the fluidized solidified soil based on fluidity requirements; determining the cement admixture ratio and curing agent admixture ratio of the fluidized solidified soil based on strength requirements; and obtaining the corresponding dosages of water, cement, curing agent, and wet soil. This application innovatively designs the mix proportion of fluidized solidified soil from a density perspective, effectively ensuring the rationality and accuracy of the density of the prepared fluidized solidified soil. This results in a density lower than that of the silt on the seabed in marine reclamation projects, thereby guaranteeing the construction quality of fluidized solidified soil reclamation projects.

The utility model provides cement test block curing equipment. The cement test block curing equipment comprises a cement curing box main body, a cement curing cavity, a layered storage structure, a rotary placement platform, a hot air input hole and an atomization humidification hole, according to the device, a layered storage structure is adopted to conserve a plurality of cement test blocks at the same time, hot steam is supplied to the cement test blocks on each layer through hot air input holes, water mist is supplied to the cement test blocks on each layer through atomization humidification holes, and the cement test blocks are placed at the upper end of a rotary placement platform on each layer; the cement test block is driven by the rotary placing platform to rotate at a low speed at a uniform speed, so that the distance between each surface of the cement test block and the hot air input hole and the distance between each surface of the cement test block and the atomizing and humidifying hole are periodically changed, and the uniformity of humidity and temperature of each surface of the cement test block is realized on the premise of not additionally arranging the hot air input holes and the atomizing and humidifying holes in multiple surfaces; the influence on the curing effect of the cement test block is avoided.

The invention discloses a red clay flow-state curing agent based on solid waste synergy as well as a preparation method and application thereof, and relates to the technical field of waste application and special soil curing. Two solid waste materials, namely the granulated blast furnace slag and the rice hull ash, are creatively compounded with the cement to form a novel curing system under the synergistic effect, namely, a slag-rice hull ash synergistic mechanism, and stable C-A-S-H gel is generated through active components (SiO2 and Al2O3) of the slag and amorphous SiO2 of the rice hull ash under the excitation of a calcium source, so that the high-strength cement is prepared. Meanwhile, pores of the red clay are filled with rice hull ash particles, a dual-curing mechanism of chemical cementation and physical filling is constructed, the problems that the curing effect is poor due to the fact that the red clay inhibits cement hydration due to an acid environment and the cementation structure is weak are effectively solved, and the strength, durability and water stability of the red clay are remarkably improved; the technical bottleneck of traditional single cement solidification or simple solid waste mixing is broken through.

The invention discloses a multi-source solid waste silt curing agent as well as a preparation method and application thereof, and belongs to the technical field of silt curing. The multi-source solid waste silt curing agent is prepared from the following raw materials in percentage by mass: 20 to 30 percent of basalt solid waste, 5 to 10 percent of waste concrete micro powder, 15 to 25 percent of slag, 20 to 35 percent of alkaline excitant, 5 to 15 percent of sodium gluconate and 5 to 10 percent of polypropylene fiber. Most of the raw materials of the multi-source solid waste silt curing agent are derived from industrial wastes, the cost is low, and compared with a cement curing agent, the multi-source solid waste silt curing agent has a better silt curing effect and can achieve required engineering characteristics.

The invention discloses a slurry leakage prevention device and method for a cement solidification barrel, and the method comprises the steps: monitoring a liquid level through a laser ranging module, adjusting the height of a limiting ring through a motor, preventing slurry from blocking an exhaust pipe, and detecting whether an exhaust channel leaks or not through a pressure release valve and a pressure sensor; if no leakage exists, external exhaust is removed, cement solidification is completed, and the cement is transferred to a temporary storage warehouse; if leakage occurs, the stop valve is closed, and the ultrasonic pulse cleaning module and the fan back flushing module are used for cleaning; and after cleaning is completed, the cement solidification process is ended. According to the slurry leakage prevention device and method for the cement solidification barrel, waste liquid and cement are mixed in the solidification barrel, so that the waste liquid is solidified, and the leakage risk of radioactive substances is reduced; the height of the liquid level is determined through detection of the laser range finder, the motor moves up and down on the upper side of the threaded rod through operation of the motor, then the limiting ring is driven to move up and down, and the limiting ring is prevented from being submerged by mud.

The invention relates to the technical field of inorganic environment-friendly sealing materials for mining, and discloses a novel inorganic environment-friendly sealing material for mining, which comprises the following raw materials: a component A: cement, a filler, a surfactant, a flame retardant, a foaming agent, a plasticizer, a cement curing agent, dispersible latex powder and water; and the component B comprises an expanding agent, a mixed emulsion, a diluent and water. According to the novel mineral inorganic environment-friendly airtight material, the flame retardant and the dispersible latex powder are added, so that the material has excellent fireproof performance, in a high-temperature environment, a heat-insulating oxygen-isolating layer formed by the flame retardant can effectively prevent fire from spreading, and the fire endurance of the material is further improved due to the structural stability of the material enhanced by the dispersible latex powder; reliable fireproof guarantee is provided for mine safety production; the organic silicon surfactant is added, so that after the material is sprayed on the inner wall of a mine, the surface is clean and tidy, the material can be tightly bonded with the inner wall, the material performance is stable, and in the preparation process, the foaming agent and the plasticizer act synergistically, so that the material is quick in reaction and high in foam expansion.

The utility model discloses a cement curing box which comprises a box body, a gear motor is installed on the rear end face of the box body, a rotating disc is installed at the output end of the gear motor, a plurality of storage baskets are installed in front of the rotating disc, and a refrigerator and a heater are installed on the bottom face in the box body. A temperature sensor and a humidity sensor are installed on the top face in the box body, a water tank is installed on the upper portion of the box body, a liquid inlet hopper penetrates through the upper portion of the water tank through a bearing, a water pump is installed on the side wall of the box body, a connecting pipe is clamped to the input end of the water pump, and one end of the connecting pipe is inserted into the water tank. The output end of the water pump is connected with a spraying pipe in a clamped mode, and one end of the spraying pipe is inserted into the box body. The cement curing box has the advantages that the rotating disc and the storage basket are adopted, the situation that use of a transmission structure is affected by humid air or foreign objects can be avoided, and the use practicability of the cement curing box is improved.

The utility model discloses a cement curing box water adding device which comprises a water storage pond arranged on the right side of an inner cavity of a cement curing box, a valve body is fixedly installed on the top of the right side of an inner cavity of the water storage pond, a valve cover is fixedly installed on the top of the valve body through bolts, and a water control assembly is arranged on the top of the valve cover. The water control assembly comprises a sliding pin penetrating from the valve deck to the inner cavity of the valve deck, and the bottom end of the sliding pin penetrates to the inner cavity of the valve body and is fixedly connected with a sealing plug. Through the arrangement of the water control assembly, the water level in the inner cavity of the water storage pond is detected, water inflow and water stop of the valve body are controlled, meanwhile, the filter cartridge and the sealing cover are used in cooperation, an entering water source is filtered, finally, the water pump and the water spraying pipe are used in cooperation, and a test block in the cement curing box is moisturized; therefore, the purposes of automatically controlling the water supply level, effectively filtering impurities in water and preventing the atomization nozzle from being blocked can be achieved.

The invention discloses a hydroxylated lignin composite cement-cured soil admixture and a preparation method thereof, and specifically relates to the field of cement-cured soil admixtures, wherein a hydroxylated lignin composite cement-cured soil admixture comprises the following components in parts by weight: 10-30 parts of lignin, 10-30 parts of sodium hydroxide, 2-6 parts of γ-(2,3-epoxypropoxy)propyltrimethoxysilane, and 1500-1700 parts of water. The admixture prepared by the invention has the effects of improving cement hydration, cement-cured soil strength, and curing durability.

The application relates to a binder applied to mine slag adhesion, which comprises the following components: 65-70 parts of mine slag, 8-12 parts of calcium aluminate cement, 3-5 parts of mine powder, 2-3 parts of phosphorus powder, 1.5-2.5 parts of water glass, 0.8-1.2 parts of sodium hydroxide, 0.6-0.8 parts of a retarder, and 2-5 parts of an alkaline additive; the alkaline additive comprises modified calcium hydroxide, sodium silicate and sodium carbonate; the modified calcium hydroxide comprises calcium hydroxide and sodium polyphosphate. The application has the effects of improving the cement solidification and adhesion performance, reducing heavy metal ion seepage, and improving the utilization rate of mine slag.

The present disclosure provides a structure protection sheet comprising a polymer cement cured layer on a side facing a structure; a resin layer on the polymer cement cured layer; and a mesh layer.

The present invention provides a structure protection sheet capable of dramatically reducing a construction period to place protective layers on surfaces of structures such as concrete, protecting the structures for a long time, preventing swelling phenomena caused by water vapor inside the concrete, and preventing a decrease in attachability. The present invention relates to a structure protection sheet including: a polymer cement cured layer on a side facing a structure; and a resin layer on the polymer cement cured layer, the structure protection sheet having a water vapor transmission rate of 10 to 50 g / m2·day.

The invention provides a tritium release rate measuring method. The method comprises the following steps: obtaining a silica gel sample adsorbing water vapor released by a cement solidified body; obtaining background water according to a preset preparation mode; obtaining a mixture according to the silica gel sample and the background water; the mixture is leached, and a mixed leaching solution is obtained; obtaining a blank counting rate and a tritium standard solution counting rate according to the background water and the tritium standard solution; determining the tritium activity concentration in the silica gel sample according to the mixed leaching solution, a preset scintillation solution, the blank counting rate and the tritium standard solution counting rate; determining the leaching rate according to the dry silica gel and the tritium standard solution; and determining the tritium release rate according to the tritium activity concentration in the silica gel sample and the leaching rate. The method can accurately and reliably monitor the release rate of tritium in the cement solidified body, and has the advantages of simple operation, low cost and high working efficiency.