113 results about "Ready-mix concrete" patented technology

The invention relates to the technical field of concrete quality traceability, in particular to a premixed concrete whole-process quality traceability evaluation method and device based on a block chain, and the method comprises the steps: analyzing a target premixed concrete quality management method, so as to obtain a quality management demand; determining a premixed concrete full-process monitoring chain according to quality management requirements; and constructing a premixed concrete quality management block chain framework according to the premixed concrete full-process monitoring chain so as to perform quality tracing on the premixed concrete to be supervised in a tracing stage, and generating a quality risk assessment report. Therefore, the problems that a current premixed concrete management mode still mainly depends on traditional form type management, the overall informatization degree is low, data traceability, openness and transparency, tampering resistance and the like have a large improvement space, and the quality management level is affected are solved.

Apparatus for real time water content and water cement monitoring on a ready-mix concrete truck includes at least one real time moisture measurement module or sensor configured tosense continuous real time moisture measurements of a batch of wet cement loaded into a rotating drum of a ready-mix concrete truck; andprovide signaling containing information about the continuous real time moisture measurements sensed.The apparatus may include either a hatch door of the rotating drum of the ready-mix concrete truck, or the rotating drum of the ready-mix concrete truck, or the ready-mix concrete truck itself.

The invention provides low-carbon premixed concrete based on industrial solid waste synergistic activation and a preparation method of the low-carbon premixed concrete. The low-carbon premixed concrete is prepared from the following components: a nano silicon-based anti-corrosion early strength agent, a cementing material, recycled aggregate, electric furnace tailings, waste carbon fibers, a polycarboxylate superplasticizer and water, the preparation method comprises the following steps: S1, preparing a nano silicon-based anti-corrosion early strength agent through silane hydrolysis and modification reaction of nano silicon dioxide; s2, preparing a cementing material: mixing fly ash, steel slag, mineral slag and Portland cement, calcining, grinding, spraying a composite alkali activator, and aging; s3, mixing and forming: wet-mixing the cementing material, the recycled aggregate, the iron tailing sand, the waste fibrilia, the nano silicon-based anti-corrosion early strength agent, the polycarboxylate superplasticizer and water, and pre-injecting and forming; and S4, carbonization curing. According to the invention, efficient utilization of industrial solid waste is realized, and the low-carbon environmental protection performance and mechanical property of the concrete are improved.

The invention provides a carbonized calcined coal gangue solid waste-based cementing material and a preparation method thereof, and belongs to the technical field of coal gangue solid waste utilization. The carbonized coal gangue-based cementing material is prepared from the following raw materials: 30 to 70 parts of calcined coal gangue micro powder, 20 to 50 parts of premixed concrete waste residue, 10 to 20 parts of cement, 0 to 5 parts of gypsum, 0.5 to 1.0 part of surfactant and 0.1 to 0.5 part of organic amine. The preparation method comprises the following steps: firstly, crushing, grinding and calcining coal gangue solid waste; mixing the mixture with premixed concrete waste residues, ordinary Portland cement, gypsum, a surfactant and organic amine, introducing industrial carbon dioxide, and drying to obtain the cement. The performance index of the carbonized and calcined coal gangue solid waste based cementing material is equivalent to that of PO 42.5-grade cement, large-dosage utilization of the coal gangue solid waste and preparation of the low-carbon cementing material are achieved, the process is simple, and the practical application and popularization value is achieved.

The invention belongs to the field of application and utilization of concrete admixtures, and discloses an early-strength water reducing agent and a preparation method thereof, and the early-strength water reducing agent is prepared from the following raw materials in percentage by mass: 5-10% of early-strength polycarboxylic acid water reducing agent mother liquor, 5-10% of inorganic early-strength agent, 2-5% of organic early-strength agent, 0.5-1% of suspension stabilizer and 74-87.5% of water. The prepared early-strength water reducing agent is in an emulsion state, does not contain chloride ions, is not easy to layer, is convenient to use, has an obvious concrete early strength effect, does not shrink in later strength, has the advantages of simple preparation process, low cost and small mixing amount, is generally 1-2% of the mass of a concrete cementing material, can improve the workability of premixed concrete, and can improve the concrete early strength. The early strength of the concrete is improved, and the long-term strength of the concrete is not influenced.

To provide a carriage for freshly mixed concrete which enables smooth and easy switching between discharging and stopping the discharge of freshly mixed concrete, and is excellent in usability.SOLUTION: A carriage for freshly mixed concrete includes: a truck body having wheels for travel; a bucket which is fixed to the truck body and can store freshly mixed concrete inside; a chute for discharge having a discharge port which projects to the wall surface of the bucket, and discharges freshly mixed concrete in the bucket to outside, on its tip side; and an opening / closing lid which is attached on the chute for discharge so as to be slidable along a predetermined slide shaft extending in a vertical direction, closes the discharge port when being positioned at a closing position on the lower side along the slide shaft, and opens the discharge port when being positioned at an open position on the upper side along the slide shaft.SELECTED DRAWING: Figure 1

The invention discloses a process for mineralizing a concrete mixture by using a carbonic acid solution and a process method thereof. The process comprises a heat exchange module, a gas-liquid mixing module, an ion additive dissolving module and a mixture mineralizing module, after the carbonic acid solution passes through the heat exchange module, the gas-liquid mixing module and the ion assistant dissolving module, an ion enhanced carbonic acid solution is output; through the mixture mineralization module, concrete, gravel and cement raw materials are mixed with an ion-enhanced carbonic acid solution, and a carbonic acid solution mineralized concrete mixture is prepared. As only equipment of the carbonic acid solution needs to be additionally arranged on an existing concrete production line, carbon dioxide atmosphere curing does not need to be carried out after the concrete is hardened, the fluidity of a concrete mixture is not affected, the construction performance of the concrete can be guaranteed, and no negative influence is caused to an existing premixed concrete pouring forming process.

The invention discloses a concrete working performance monitoring method and system based on coarse aggregate slurry wrapping state recognition, and relates to a method and system for monitoring the working performance of premixed concrete based on machine vision and machine learning. The invention discloses a concrete working performance monitoring method based on coarse aggregate slurry wrapping state recognition. The concrete working performance monitoring method comprises the following steps: acquiring a video stream in a stirring process through an image acquisition device arranged in a concrete stirrer; extracting a key frame from the video stream, and identifying coarse aggregate particles in the key frame; calculating characteristic parameters reflecting the wrapping state of the slurry on the surfaces of the coarse aggregate particles; inputting the characteristic parameters into a pre-trained concrete working performance evaluation model to obtain a working performance evaluation result; and outputting the evaluation result. According to the method, direct and quantitative on-line monitoring of the microstructure state of the concrete in the stirring process is achieved, a more essential and more accurate quality evaluation means is provided by revealing the internal relation between the slurry wrapping state and the working performance, and the lagging, indirect and macroscopic defects of a traditional method are overcome.

The invention relates to the technical field of dust removal equipment, in particular to an environment-friendly dust removal device for production of superfine slag powder and premixed concrete, and is characterized in that the environment-friendly dust removal device comprises a dust removal box, a top cover is fixedly mounted on the top surface of the dust removal box, a negative pressure fan is fixedly mounted in the top cover, and a connecting pipe is fixedly mounted at a feeding port of the dust removal box; during use, when the filter bag is loaded with dust, an air pump can be started to introduce air into each inner pipe through an air distributing pipe, at the moment, airflow is injected into the filter bag along the inner pipes to remove loose dust on the surface of the filter bag, and meanwhile, after high-pressure air is injected out, the airflow can drive turbine blades to rotate at a high speed, drive a reciprocating screw rod to synchronously rotate and drive a hollow ring to reciprocate up and down; meanwhile, high-pressure gas enters the spring tube from the mounting hole and is injected into the hollow ring, and then the inner wall of the filter bag is directly flushed by the spray head, so that the deep cleaning of the filter bag is realized, and the long-period low-maintenance dust removal effect is realized.

The utility model provides a carbon sequestration premixed concrete integrated stirring device which comprises a stirring barrel and a stirring assembly, a stirring cavity is formed in the stirring barrel, the stirring assembly comprises stirring blades, air outlet holes are formed in the far ends of the stirring blades, the stirring blades are rotatably arranged in the stirring cavity, and in the rotating process of the stirring blades, the air outlet holes are formed in the far ends of the stirring blades. The air outlet holes can repeatedly pass through the lower part of the stirring cavity so as to intrude into the mixed material, and the air outlet holes can also be connected to a CO2 air source positioned outside the stirring barrel through air passages arranged in the stirring blades. In the process that the stirring blades rotate along with the stirring shaft to stir the mixed material, carbon sequestration is carried out on the surface of the mixed material in the gaps of the stirring cavity, such as the top, and carbon sequestration is also carried out in the mixed material, so that CO2 gas can be in full contact with the mixed material, the carbon sequestration efficiency is higher, and the carbon sequestration effect is better.

The utility model relates to the technical field of concrete processing, and particularly discloses a premixed concrete coarse impurity filtering device which comprises a shell, the shell is of a cylinder structure in the horizontal direction, the interior of the shell is hollow, a feeding pipe is arranged on the surface of one side of the shell in a penetrating mode, and a valve is arranged in the feeding pipe. A discharging pipe is arranged on the lower surface of the shell in a penetrating mode, and a valve is arranged in the discharging pipe. According to the pre-mixed concrete coarse impurity filtering device, the rotating filtering cylinder is arranged in the shell, after pre-mixed concrete is introduced into the filtering cylinder, the rotating filtering cylinder conducts centrifugal filtering on the pre-mixed concrete, and therefore impurities in the pre-mixed concrete are more efficiently filtered, and the impurities in the pre-mixed concrete are filtered out under the effect of centrifugal force; the filter holes are uniformly distributed on the surface of the filter cartridge and fully contacted with the filter holes, so that the filtering speed is increased.

The purposed of this invention is to creating a concrete mixing bucket install on a height tower. To release ready-mixed concrete to more quantity enough to one mixer truck / round of the cement mixer truck to transport another step. With the crater to fill the material to the top of bucket and released at the bottom of the middle bucket while the bucket are rotating and stop rotating. That can be mix concrete in larger quantities sufficient for mixing per 1 round of transport mixer truck. To reduce the working time per mixing cycle per release cycle. This will increase speed of working bring to save time and costs.

The utility model belongs to concrete mixing drum technical field, concretely is a kind of pre-mixed concrete mixing drum device with cleaning structure, including bottom plate;The top of bottom plate is fixedly installed with support, the inner wall of support is fixedly installed with mixing jar body, the bottom of mixing jar body is fixedly installed with discharge gate, the top of mixing jar body is provided with feeding mechanism, the inner wall of mixing jar body is provided with driving assembly;The surface of driving rod is provided with stirring assembly, the surface of driving rod is provided with agitating assembly;The inner wall of mixing jar body is provided with cleaning assembly, the top of mixing jar body inner wall is provided with water spraying mechanism;Through the setting of annular hopper, cross link and protective shell, annular hopper can be conveniently used to pour material into the inside of mixing jar body, meanwhile, the special shape of annular hopper can enable user to pour material from any angle.

In various embodiments, a process is described for the preparation of a concrete mixture in a Ready-mix or for an installation. A quantity of amorphous silica is added with an average particle size in the range of from about 1 to about 55 nanometers and / or wherein the surface area of the particles of the amorphous silica is in the range of from about 50 to about 900 m2 / g. The amorphous silica may be added in colloidal form or otherwise, and is added at a particular stage to ensure efficacy.

The utility model relates to the technical field of premixed concrete, and discloses a premixed concrete admixture homogenizing device which comprises a base, a tank body is fixedly connected to the base, a first motor is fixedly installed on the base, the output end of the first motor is fixedly connected with a first driving bevel gear, and the output end of the first driving bevel gear is fixedly connected with a second driving bevel gear. A first stirring blade is fixedly connected to the first driven rod, a second driven bevel gear is connected to the first driving bevel gear in a meshed mode, and a second stirring blade is fixedly connected to the second driven rod. According to the premixed concrete admixture homogenizing device, when the premixed concrete admixture homogenizing device is used, a first motor is started, and a first driven bevel gear and a second driven bevel gear are meshed with a first driving bevel gear, so that a first stirring blade and a second stirring blade rotate in opposite directions, and concrete admixtures in the tank body are fully mixed and are more uniform; therefore, more efficient concrete admixture homogenization work is achieved, and use of premixed concrete in the next step is facilitated.

To provide a concrete pump vehicle that cleans concrete pipes using cleaning water in a water tank mounted on a deck. [Solution] The wash water in the water tank 3 is heated using electricity from an external power source (not shown) or an on-board battery (not shown), so it can be heated inexpensively and the wash water can be warmed to a specified temperature without taking a long time. Conventionally, if the wash water in the tank or in the wash piping freezes while the ready-mixed concrete is being unloaded from a traveling vehicle at the work site, there was also the problem that engine fuel was needed just to warm the wash water, and it took a little while for the wash water to warm up.

To provide a ready-mixed concrete order support device, a program, and a ready-mixed concrete order support method capable of providing accurate information to an orderer.SOLUTION: A ready-mixed concrete ordering support device (10) includes an acquisition unit (131) configured to acquire past travel record data including a position and a travel time of a transport vehicle that transports ready-mixed concrete from a shipping factory, and map information, a generation unit (132) configured to generate an isochrone chart from the shipping factory based on the map information and the travel record data, and an output unit (133) configured to output the isochrone chart so that an orderer of the ready-mixed concrete can use the isochrone chart.SELECTED DRAWING: Figure 1

Highly fluid ready-mix concrete seeps into the gap between the sponge mold and the slab bottom (formwork), causing the sponge mold to lift. Furthermore, labor costs are currently incurred for chipping away the concrete that leaks out after it has hardened. [Solution] By using the present invention product instead of the conventionally installed rafters, it is possible to prevent the intrusion of fresh concrete into the slab bottom (formwork) and the bottom of the sponge mold, thereby preventing the sponge mold from floating. Previously, rafters were lined up to secure the pouring height (slab height) of the fresh concrete, but by using the present invention product, the pouring height of the fresh concrete can be secured, and because it adheres closely to the slab bottom (formwork), it is possible to prevent the sponge mold from floating. This eliminates the need to hire specialized contractors and leads to a reduction in unexpected labor costs due to chipping work after pouring, making it economical. Furthermore, since rafters are not required, it is characterized by a reduction in building material costs, a reduction in industrial waste, and a significant reduction in time, cost, and labor costs.

To improve the accuracy of quality prediction while avoiding complication of work involved in quality prediction when performing quality prediction using a prediction model.SOLUTION: Provided is a method for predicting the quality of ready-mixed concrete, including: an acquisition step of acquiring input information including first information relating to at least one of the power load value of a mixer that produces ready-mixed concrete by mixing concrete materials or that stirs the ready-mixed concrete, vibrations caused by the falling or flowing down of the ready-mixed concrete, and an image of the ready-mixed concrete, and second information relating to the target quality of the ready-mixed concrete when it is used; and a prediction step of predicting the quality of the ready-mixed concrete based on a prediction model that has been constructed in advance by machine learning to output quality information that indicates the quality of the ready-mixed concrete in response to the input of the input information, and the input information acquired in the acquisition step.SELECTED DRAWING: Figure 5

The invention provides preparation and application of crushed pebble concrete. The preparation comprises the following steps: controlling the quality of premixed concrete raw materials, screening coarse aggregate crushed pebbles, and proportioning according to a ratio and a process after screening. The crushed pebble concrete is prepared from the following raw materials in parts by mass: 550-650 Kg / m < 3 > of a cementing material, 140-160 Kg / m < 3 > of water, 130-350 Kg / m < 3 > of an additive and 800-1200 Kg / m < 3 > of crushed pebbles, and in the manufacturing process of the crushed pebble concrete, the crushed pebbles, cement, sand, water and other materials need to be fully stirred by using a concrete stirrer, air is removed, and the compactness of the concrete is ensured. And then, pouring the concrete into a prepared mold or a construction site, and carrying out the steps of pouring, compacting, curing and the like. And finally, after the concrete is fully dried, the mold can be taken out, and the crushed pebble concrete is used for engineering construction of landscape architecture, sidewalks, roadbeds and the like.

To improve prediction accuracy when predicting quality by a prediction model.SOLUTION: A quality prediction method of ready-mixed concrete comprises: an acquisition step of acquiring input information including first information concerning a power load value of a mixer producing ready-mixed concrete by kneading concrete material and second information concerning a production period of the ready-mixed concrete by the mixer; and a prediction step of predicting quality of the ready-mixed concrete on the basis of a prediction model constructed in advance by machine learning in such a way as to output quality information representing the quality of the ready-mixed concrete in response to input of the input information and the input information acquired in the acquisition step.SELECTED DRAWING: Figure 6

The invention relates to the technical field of premixed concrete aggregate processing and application, in particular to premixed concrete aggregate pretreatment equipment which comprises a water storage assembly, a discharging assembly, a screening assembly, a feeding assembly, an adjusting assembly and a cleaning assembly. Secondly, the left-right position of a spray head is adjusted through an adjusting assembly, the sieve plate turns over the aggregate and drives the spray head to move left and right, water sprayed out of the spray head makes more sufficient contact with the aggregate, and therefore the aggregate can be stirred and pushed continuously, the screening passing rate is increased, and more thorough screening of the aggregate through the sieve plate is facilitated; and meanwhile, the screening assembly, the adjusting assembly and the cleaning assembly work in a matched mode, it is guaranteed that the automation degree of aggregate screening and cleaning work is higher, manpower is saved, and the working efficiency of aggregate screening and cleaning is improved.

The utility model discloses a premixed concrete impurity filtering device which comprises a filtering box body and a feeding pipe inserted into the left side of the upper end of the filtering box body, a filtering mechanism is arranged in the filtering box body, and a smashing mechanism is arranged in the feeding pipe. The filtering mechanism comprises a driving motor, a driving shaft, a transmission shaft I, a driving gear, a group of strip-shaped plates, two groups of guide wheels, a filtering roller, a material guide screw, a group of guide rings and an annular rack; the crushing mechanism comprises a transmission shaft II, a crushing shaft, a plurality of screw blades and a conical grinding block. The device has the beneficial effects that the conical grinding block is matched with the conical grinding cavity, large-particle impurities in premixed concrete can be ground and crushed, the feeding pipe can be prevented from being blocked by a plurality of spiral blades, the filtering mechanism adopts the driving motor to drive the filtering roller to rotate, the impurities in the premixed concrete are filtered, and the filtering efficiency is improved. Impurities can be discharged through the material guiding screw, the filtering roller can be automatically washed through the high-pressure washing pipeline, and use is convenient.

The utility model relates to the technical field of building equipment, in particular to water adding equipment for producing premixed concrete. The technical problems that in the concrete production process, water is mostly added by using a water pipe or directly pouring water into a stirring device, and as the water adding position is relatively fixed, internal water is easy to distribute unevenly and cannot be mixed and reacted with cement quickly, so that the production efficiency of the concrete is reduced are solved; according to the technical scheme, the water adding equipment for producing the premixed concrete comprises a stirring assembly, a conveying assembly, a connecting assembly, a water injection assembly and a flow dividing assembly; compared with traditional water adding equipment for premixed concrete production, the water adding equipment for premixed concrete production has the advantages that water can be added into the equipment in the stirring process through matched use of the water injection structure and the flow dividing structure, and the flow dividing structure can be driven to rotate, so that rotary water adding can be performed in the concrete mixing process; the concrete can be mixed and stirred more uniformly, so that the production speed of the concrete is increased.

There is disclosed a process for converting concrete obtained from construction and demolition waste (CDW) and / or from returned concrete (RC) from ready mix concrete trucks and / or other mineral materials into reactive supplementary cementitious materials. The process comprises obtaining crushed recycled concrete, in the form of recycled concrete aggregates (RCA) and fine recycled concrete aggregates (FRCA), and / or crushed mineral material other than recycled concrete. The process further comprises subjecting the recycled concrete and / or the crushed mineral material to one or both of (i) mechanical calcination, and (ii) dry coating with SSCM, to form the reactive (pozzolanic or hydraulic) SCM.

A method for designing mix proportions of high-slump ready-mixed concrete for roads based on fillability is disclosed, relating to the field of road construction. This method involves determining the permissible values ​​of concrete spread and slump time in an inverted slump cone; conducting trial mix design for the concrete pavement; calculating the standard values ​​of concrete spread and slump time in an inverted slump cone respectively; calculating temperature correction coefficients and transport time correction coefficients and adjusting the standard values ​​of spread and slump time in an inverted slump cone to obtain design values; and determining whether the design values ​​of concrete spread and slump time in an inverted slump cone simultaneously meet the permissible values ​​of both. This method can predict and ensure that the fillability of the prepared concrete meets construction requirements during the concrete mix design stage, thereby guaranteeing concrete quality.

The utility model relates to a concrete premixing device, which belongs to the technical field of concrete premixing devices and comprises a base, a fixing plate and a premixing barrel body, a support frame is arranged on the right side of the upper surface of the base, and support blocks are arranged on the front side and the rear side of the upper surface of the fixing plate. According to the concrete pre-mixing device, the pre-mixing barrel body is driven to rotate in the fixing ring, concrete materials in the pre-mixing barrel body can be evenly mixed, after mixing is finished, a first electric push rod is started to drive the pre-mixing barrel body to turn over rightwards, then a second electric push rod is started, and the concrete materials in the pre-mixing barrel body are uniformly mixed. A second electric push rod drives a sealing cover to turn leftwards, stirred concrete is poured out through an opening in the right side of a conical shell, and during pouring out, a first motor rotates to drive scraping frames on the upper side and the lower side to rotate, so that the concrete attached to the inner circumferential wall of the premixing barrel body can be scraped away; and concrete attached to the inner circumferential wall of the premixing barrel can be conveniently cleaned.

The present invention relates to a new building material 3D printing method for the production of printable building materials (CM2S) as premixed concrete or mortar containing water, binders, sand, small and medium size aggregates and various additives, and to the transportation of the printable building materials (CM2S) to a worksite equipped with 3D printing (6, 8) in order to place the printable building materials (CM2S).

The utility model relates to the technical field of concrete processing, and discloses a nickel sand aggregate premixed concrete cooling device which comprises a stirrer and a cooler, a stirring mechanism is rotatably mounted on the inner wall of the stirrer, and a circulating mechanism is fixedly mounted in an inner cavity of the stirrer. The circulating mechanism comprises a threaded circulating groove, a water inlet pipe, a water outlet pipe, a first communicating pipe, a second communicating pipe, a first communicating vessel and a second communicating vessel, according to the nickel sand aggregate premixed concrete cooling device, the water storage tank is filled with water, and the water inlet pipes and the water outlet pipes of the stirrers are installed on the first communicating pipe and the second communicating pipe correspondingly; a plurality of first communicating pipes are connected with a first communicating vessel, a plurality of second communicating pipes are connected with a second communicating vessel, a water pump is used for filling water in a water storage tank into a water filling pipe through a water suction pipe, cooling water is filled into the first communicating pipes from the first communicating vessel through the water filling pipe, and the cooling water is filled into a water inlet pipe from the first communicating pipe.