318 results about "Screed" patented technology

The invention provides a construction control system, method and equipment of an underwater leveling machine and the underwater leveling machine, and relates to the technical field of ocean engineering. The construction control system comprises a sensing subsystem used for obtaining the weight of stone in a hopper of the underwater leveling machine and the inclination angle of the hopper; the calculation subsystem is used for determining the stone mass based on the weight of the stone in the hopper and the inclination angle of the hopper and calculating the real-time material distribution mass flow rate based on the time sequence data of the stone mass; the current terrain elevation of the foundation bed is obtained to calculate the terrain residual error and the to-be-laid volume; and the control subsystem is used for generating a cloth control instruction through an optimization decision algorithm based on the real-time cloth mass flow rate, the terrain residual error, the to-be-laid volume and the predicted thickness distribution. According to the system, real-time working condition monitoring, dynamic flow calculation, terrain deviation analysis and predictive control strategies can be combined, closed-loop accurate control over the whole process from material conveying to bottom bed forming is achieved, and the control precision of underwater leveling construction is improved.

The invention provides a basement large plate structure steel plate overlapping reinforcing structure and a construction method, and relates to the field of structural engineering.The basement large plate structure steel plate overlapping reinforcing structure comprises a large plate structure plate reinforcing structure which is connected to the lower portion of an original concrete plate and located in a large plate structure plate reinforcing area. The large plate structure plate reinforcing structure comprises a prefabricated newly-added concrete structure which is prefabricated and poured on the upper portion of a reinforcing steel plate, and a notch is reserved in the upper end of the prefabricated newly-added concrete structure; the reinforcing steel plate is arranged on the lower portion of the prefabricated newly-added concrete structure, and interface connection between the reinforcing steel plate and the prefabricated newly-added concrete structure is further achieved through the shear connector. The connecting steel bars are arranged on the reinforcing steel plates; the mortar layer is arranged on the upper surface of the convex part of the prefabricated newly-added concrete structure; the cast-in-place newly-added concrete is arranged at the notch; and the tensile steel bars are partially embedded in the original concrete slab and are partially embedded in the cast-in-place newly-added concrete. The original large plate structure can be reinforced conveniently, quickly, economically and reasonably, the bearing capacity of the structure is improved, and the durability of the structure is enhanced.

The present invention relates to a rotating device for integration in a substrate, preferably in a building floor element, more particularly in a screed floor, having at least three support units, which can be arranged individually in the circumference of the substrate within a circular area about an axis of rotation, a rotating plate which extends at least over the circular area and has a room side and a bearing side opposite the room side, a rotary bearing unit, and at least one drive apparatus, wherein the rotating plate is rotatably mounted in the axis of rotation and the at least three support units support the rotating plate in a rotationally movable manner in the orientation of the axis of rotation in a vertical axis on the bearing side, and wherein the drive apparatus is configured to set the rotating plate in rotation about the axis of rotation.

The utility model discloses a water stop structure suitable for an upper gate room of a high gate with a deep and thick covering layer in the technical field of engineering water stop, which comprises a plurality of gate plates, a structural seam is arranged between two adjacent gate plates, the structural seam is communicated with a water stop cavity, and a water stop device is filled in the water stop cavity. The water stop device comprises a first mortar layer, a flexible filler layer and a second mortar layer which are sequentially filled in the structural joint from top to bottom, a copper sheet water stop assembly and a water stop belt assembly are arranged on the flexible filler layer in a penetrating mode at intervals, the overall structure is large in flexibility effect, the function of adapting to large uneven deformation between adjacent gate sections can be achieved, damage is not prone to occurring, and the service life of the water stop device is prolonged. Therefore, safe operation of the water gate structure is guaranteed.

The invention provides an asphalt concrete paver, and relates to the technical field of pavers. The paver comprises a vehicle body, a first driving mechanism, a paving mechanism, a first connecting mechanism and a discharging mechanism, the vehicle body comprises a hopper. The first driving mechanism comprises a supporting frame and a driving lead screw which is arranged in the supporting frame in a penetrating mode and driven by a first motor to rotate. The paving mechanism comprises an ironing plate connected with the driving screw rod; the first connecting mechanism comprises a connecting plate connected to a rod body of the driving screw rod, and the other end of the connecting plate is connected with the ironing plate; the discharging mechanism is arranged at the bottom of the car hopper and comprises a first rotating shaft and a plurality of blades, the first rotating shaft penetrates through the discharging channel in the direction perpendicular to the bottom of the car hopper, the blades surround the first rotating shaft and are located in the discharging channel, and one end of the first rotating shaft is connected with the driving lead screw through a linkage structure; and the driving screw rod is used for driving the ironing plate to move and driving the first rotating shaft to rotate through self rotation, so that the paving uniformity and the discharging speed uniformity can be synchronously improved.

A road finishing machine comprises a screed for producing a paving layer from a paving material, a material bunker for receiving the paving material, a longitudinal conveying device configured to transport the paving material from the material bunker toward the screed, and a transverse distributor auger configured to distribute the paving material transported by the longitudinal conveying device transversely in front of the screed. The transverse distributor auger is mounted in front of a screed basic body of the screed within a transverse distributor channel, which is formed at least in sections by channel plates supported at a chassis of the road finishing machine, and by pre-scrapers attached laterally of a screed basic body of the screed. The road finishing machine further includes at least one suction device with at least one intake line which is configured to suck off aerosols forming during the transverse distribution of the paving material.

This invention provides an asphalt finisher that can precisely adjust the width of the screed by extending and retracting the screed extension cylinder at an appropriate extension and retraction speed. [Solution] The asphalt finisher 100 is equipped with a screed 3 that spreads and levels the paving material PV while moving in the laying direction. The asphalt finisher 100 includes a screed extension cylinder 26, a switching valve 34, a screed position sensor 51C, and a controller 50. The controller 50 calculates the target trajectory of the side frame 32 where the side frame 32 is located, and calculates the extension and retraction speed of the screed extension cylinder 26 based on the deviation between the target trajectory of the side frame and the current position of the side frame 32 detected by the screed position sensor 51C. The controller 50 then controls the screed extension and retraction cylinder 26 by switching the switching valve 34 on and off based on the extension and retraction speed.

The utility model relates to a walking unit for a magnetic wheel type automatic trowelling machine, which is characterized by comprising a driving motor mounted on a motor supporting platform, and the motor supporting platform is fixedly connected with a walking frame of the trowelling machine; the driving wheel is connected to the driving motor; the transmission belt or the transmission chain is connected with the driving wheel; the two magnetic walking wheel sets are connected to the driving wheel through the transmission belt or the transmission chain. Through the unique magnetic walking wheel set design and the reasonable transmission structure, the walking stability and accuracy of the automatic trowelling machine can be effectively improved, the trowelling operation quality is guaranteed, and the production requirements of the modern large concrete prefabrication industry for high-quality concrete prefabricated parts are met.

The invention relates to the technical field of underwater leveling machine construction, in particular to an underwater leveling machine with an obstacle handling function. Comprising a leveling machine main frame and a stone digging device, the stone digging device comprises a digging arm and a digging bucket connected to the front end of the digging arm, and the digging arm is arranged on the leveling machine main frame and can move transversely and longitudinally relative to the leveling machine main frame. According to the underwater leveling machine with the obstacle handling function, the stone digging device is arranged on the leveling machine main frame, the stone digging device comprises the digging arm, the digging bucket is arranged at the front end of the digging arm, and when stone possibly interfering with a material distribution pipe is encountered, the digging arm transversely and longitudinally moves relative to the leveling machine main frame, so that the material distribution pipe can be blocked; when the underwater leveling machine works underwater, the excavator bucket is moved to a preset position, the stones are excavated, then the excavating arm transversely and longitudinally moves relative to the leveling machine main frame, the stones are moved to other positions, and therefore the purpose of assisting in obstacle removing in the underwater operation process of the underwater leveling machine is achieved.

The utility model discloses a high-performance fireproof heat-insulation XPS (extruded polystyrene) insulation board for a building, and relates to the field of XPS insulation boards. The thermal insulation board comprises a thermal insulation board body, elastic mesh cloth is fixedly pasted on the periphery of the back of the thermal insulation board body, the whole elastic mesh cloth is of a concentric-square-shaped structure, the outer edge of the elastic mesh cloth extends to the outer side of the thermal insulation board body, and when adjacent thermal insulation board bodies are spliced, the elastic mesh cloth is of a staggered structure. According to the utility model, through the clip-shaped elastic mesh cloth, after a plurality of insulation board main bodies are mounted, the elastic mesh cloth on the back parts of the insulation board main bodies can naturally form a staggered structure, so that the mounting structure firmness between the insulation board main bodies and a wall surface is enhanced, and more importantly, the deformation stress can be effectively dispersed; due to the fact that the wall face and the mortar layer possibly generate tiny deformation due to thermal expansion and cold contraction, the staggered structure of the elastic screen cloth can absorb the deformation, and therefore the influence on the heat preservation plate body is reduced.

A leveling system for a road paver with a screed, having: a measuring system; and a controller; the measuring system having first and second sensors, the first sensor being arranged in front of the second sensor in the direction of travel and configured to measure a first distance from the first sensor to a further ground with an offset height level to obtain a first height value, and the second sensor being arranged in front of the screed and configured to measure a second distance from the second sensor to a ground or reference of the construction machine to obtain a second height value; the controller being configured to determine the offset based on the first and second height values by forming a difference, to determine a set value for an adjustment based on the offset, and to control the screed depending on the set value.

The invention relates to the technical field of wear-resistant terrace construction, and discloses a construction method of a wear-resistant terrace. The method comprises the following steps: (1) pouring an interface agent on a base layer to obtain an interface agent layer; the interface agent is neat cement paste or a combination of neat cement paste and polymer emulsion; (2) semi-dry slurry containing dry and hard cement mortar is laid on the interface agent layer for fine leveling construction, and a dry and hard cement mortar layer is obtained; the mass ratio of dry hard cement mortar to water in the semi-dry slurry is 100: (7-11); and (3) sequentially arranging a wear-resistant aggregate layer and a curing agent layer on the upper surface of the dry hard cement mortar layer to obtain the wear-resistant floor. By means of the construction method of the wear-resistant floor, one-time precise leveling can be achieved, and the construction period is remarkably shortened.

The utility model discloses composite anti-corrosion felt cloth capable of being quickly paved. The composite anti-corrosion felt cloth comprises a water-permeable net surface layer, a metal net surface layer, a mortar layer and a bonding layer, an upper splicing edge opening and a lower splicing edge opening are formed in the two sides of the permeable net surface layer respectively, and the upper splicing edge opening and the lower splicing edge opening can be in seamless butt joint; the permeable net surface layer is divided into an upper net surface layer and a lower net surface layer, and the space between the upper net surface layer and the lower net surface layer is filled with the metal net surface layer and the mortar layer; the bonding layer is attached to the lower end face of the lower net face layer. The composite anti-corrosion felt cloth can be rolled up, the width is fixed, and the length can be freely cut; the two pieces of composite anti-corrosion felt cloth can be attached and spliced on the outer surface of the steel structure stand column or the building stand column; the mesh layer and the bonding layer generate a corrosion-resistant layer on the surface of the building stand column, and the adsorbability of cement on the surface of the building stand column is improved; and cement packaging or follow-up construction of the building stand column is facilitated.

The utility model belongs to the field of building construction walls, and particularly relates to an auxiliary component for intelligent construction, which comprises two outer vertical walls, inner frameworks and filling materials, the inner frameworks are attached to the inner sides of the two outer vertical walls, the filling materials are attached between the inner frameworks on the two sides, and the filling materials are arranged between the outer vertical walls and the inner frameworks. The outer vertical wall is of a zigzag structure. According to the structure, internal filling materials can be sprayed and built through 3D printing equipment, the external wall body can be decorated at will according to design requirements, the mortar layer can be sprayed and built only after workers bind reinforcing steel bars, the whole building of the wall body can be completed, and the construction efficiency and the accuracy after the wall body building is completed are improved.

The utility model discloses indoor window construction structure, it includes wall body, window frame, windowsill pressing plate, windowsill board, the top of wall body is fixed with windowsill pressing plate through mortar layer, the top end surface of windowsill pressing plate is fixed with the vertical setting of window frame, the side of window frame close to the interior is equipped with the horizontal setting of windowsill board, and the bottom end surface of windowsill board is fixedly connected with the top end surface of windowsill pressing plate, and the side of windowsill pressing plate close to the interior is equipped with the horizontal setting of threaded column, and the vertical support is set up on threaded column, and the vertical support is abutted with wall body through fastening nut, and the top of vertical support is fixed with horizontal support, and the top end surface of horizontal support is fixedly connected with the bottom end surface of windowsill board.

The present application relates to a kind of high-quality installation construction methods of zero-carbon building fabricated thermal insulation wall surface, to improve installation quality effect.It is that high-strength fireproof thermal insulation secondary board and anti-cracking leveling mortar layer and decorative layer are respectively outwardly arranged on the both sides of fireproof thermal insulation main board embedded in wall frame;Wherein the setting of secondary board and anti-cracking leveling mortar layer: main board and two secondary boards are first transversely penetrated with non-metal heat insulation bridge connecting piece, the two screw rod ends of connecting piece are screw-fitted with inner limiting fastening disc, then steel wire mesh is hung, at least one limiting pad is embedded in the inner side position of steel wire mesh between inner limiting fastening disc before or after hanging steel wire mesh, which is used to limit the distance from secondary board, the outer limiting fastening disc of connecting piece is screw-fitted with inner limiting fastening disc, which is opposite to steel wire mesh, and then anti-cracking leveling mortar is used for leveling.The present application has the advantages of overcoming the defect of low overall strength of fireproof thermal insulation main wall, good overall strength stability and thermal insulation performance of wall surface, good weather resistance and fire resistance, long service life, and realizing high-quality fabricated installation construction.

A screed plate for a screed assembly to be towed by a mobile paver has a lower textured surface including a plurality of protruding elements arranged in a gradation pattern. The gradation pattern is characterized by an increasing number or density of protruding elements between a forward leading edge and a rearward trailing edge of the screed plate. The gradation pattern is also characterized by a decreasing size of the protruding elements between the forward leading edge and the rearward trailing edge. The protruding elements may be shaped as oblong rhombic pyramids defining channeling grooves there between.

The utility model discloses a prefabricated concrete coping construction structure of outer wall windowsill, it includes prefabricated windowsill board, window frame, window, and the end face of window bottom wall body is fixed with at least one prefabricated windowsill board through mortar layer, and prefabricated windowsill board includes integrated horizontal part, vertical part and inclined part, and horizontal part sets up close to indoor one side, and inclined part sets up close to outdoor one side, the bottom of window frame is fixedly connected with the top end surface of horizontal part through flexible part, and the window wall of window frame close to outdoor one side and vertical part abut, and the junction of window wall of window frame close to outdoor one side and inclined part is filled with sealant, the utility model has the advantages of: saving construction time through prefabricated concrete coping, and not needing to pour in the field, and only need to be embedded in the wall body of window two sides with the steel plate 19 matched with angle steel, and the prefabricated concrete coping can be fixed at the window place, and the operation is simple and convenient.

The utility model belongs to the technical field of building engineering, specifically discloses a heavy nonferrous metal smelting engineering existing pool anticorrosive and anti -infiltration structure. The reinforced concrete bottom plate and lateral wall of structure are closed into pool, the surface of reinforced concrete bottom plate is equipped with waterproof coating, geotextile I, high density polyethylene geomembrane, geotextile II, fine stone concrete layer, epoxy glass steel isolation layer and anticorrosive surface layer in proper order, the surface of reinforced concrete lateral wall is equipped with waterproof coating, geotextile I, high density polyethylene geomembrane, geotextile II, polymer cement mortar layer, epoxy glass steel isolation layer and anticorrosive surface layer in proper order, the layer of aforementioned same name of reinforced concrete bottom plate and lateral wall surface, geotextile and geomembrane correspond to head -tail link, and fine stone concrete layer and polymer cement mortar layer correspond to head -tail link. The utility model has the characteristics of simple structure, convenient construction, good anticorrosive and anti -infiltration performance and low cost.

The invention provides a geopolymer mortar-based fireproof protective layer of a concrete filled steel tubular column and a construction method. The fireproof protective layer sequentially comprises a galling material layer, a geopolymer mortar layer and a wire mesh reinforcing layer embedded in the geopolymer mortar layer from inside to outside, wherein the geopolymer mortar is prepared from the following raw materials in parts by weight: 30 to 35 parts of sodium hydroxide, 200 to 210 parts of water glass solution, 1490 to 1510 parts of blast furnace slag, 1490 to 1510 parts of fly ash, 90 to 450 parts of silica fume, 4490 to 4510 parts of natural river sand, 5 to 8 parts of polypropylene fiber and 1080 to 1140 parts of water. According to the geopolymer-based fireproof protective layer, the fire endurance of the concrete-filled steel tubular column can be remarkably improved, and the fire endurance of the concrete-filled steel tubular column can reach 3-4 hours or above; and the compressive strength of the geopolymer mortar at high temperature is higher, and the fireproof protection layer based on the geopolymer mortar can bear a part of vertical load in a fire disaster, so that the fireproof effect is better.

The utility model discloses a powder material feeding device, which relates to the technical field of powder material feeding appliances, and comprises a sealing box and a support table arranged at the bottom end, a discharge table is arranged on the bottom surface of one end of the sealing box, a plurality of support frames are arranged at the other end of the top surface of the sealing box, and a material storage kettle is arranged on the support frames. A driving motor is mounted in the middle of the top surface of the storage kettle; a feeding table is mounted at one end of the top surface of the storage kettle; according to the utility model, the transmission rollers are matched with the conveying belt and the trowelling plate, and the trowelling plate is used for trowelling the flatness of materials between the two partition plates of the conveying belt, so that the effect of uniformly conveying powder materials is achieved, the problem of non-uniform accumulation of the materials in the conveying process is solved, and the feeding precision is improved; and through the cooperation between the inverted arc plate and the low-speed rotating rod, the effects of enabling the storage kettle to store more materials and preventing the materials from being accumulated are achieved, the problem that the materials are accumulated and blocked in the storage kettle is solved, and the storage and feeding efficiency of the storage kettle is improved.

The invention discloses a building outer wall renovation construction method. The method comprises the following steps: step 1, checking and treating an original ceramic tile wall surface; the original ceramic tile wall surface is comprehensively checked, hollow ceramic tiles and a loose base layer are removed, and protruding foreign matters and pollutants on the wall surface are cleaned; a vacant part formed after removal and cleaning is filled and leveled with polymer cement mortar; polishing the glaze layer of the ceramic tile by using a polishing machine to form a rough surface so as to enhance the binding power of subsequent materials; step 2, interface processing; 3, construction of a renovating putty layer; 4, anti-crack mortar construction and gridding cloth construction are conducted; and step 5, surface layer construction. According to the method, the original ceramic tile wall surface is subjected to polishing, interface treatment and direct coating construction, so that the operation of chiseling off ceramic tiles and mortar layers in a large area in the traditional'removing and remaking 'process is avoided, mechanical impact noise and vibration generated in the construction process are remarkably reduced, and the method is suitable for renovating construction of building outer walls in a use state; and the interference to the surrounding environment and the user is effectively reduced.

The utility model relates to house repair technical field especially, is involved in a kind of for the structure of tiling waterproof layer of outdoor terrace, including base surface layer and setting on the leveling layer of base surface layer;Tile layer is arranged and disposed in the horizontal direction above leveling layer, and mortar layer is set between the back of tile layer and leveling layer, and in any two adjacent tiles between tile layer, jointing agent is used to form jointing structure;Jointing agent is PS-1 high-strength penetration reaction type back water surface repair special material.The utility model has the characteristics that structure design is more simple and reasonable, can better avoid waterlogging from jointing place penetration, and the characteristics that waterproof effect is better can better avoid floor underside efflorescence.

The application discloses a kind of river bottom communication engineering temporary partition wall and temporary cofferdam joint structure and its construction method, the joint structure includes the earth bag cofferdam of pile stacking between top plate and temporary partition wall, and the settlement deformation waterproof structure of being blocked by the earth bag cofferdam at the corner of top plate and temporary partition wall, the settlement deformation waterproof structure includes deformation groove, inner waterproof roll, settlement angle plate, expansion bolt, backing plate, outer waterproof roll, wherein inner waterproof roll is not bonded at the deformation groove or at least at the deformation groove bottom surface laying;Vertical plate of the settlement angle plate is provided with vertically distributed strip hole or waist hole;The outer waterproof roll is reserved with not bonded folding edge at the gap between the lower surface of settlement angle plate and screed, and rubber waterstop rod filled in the folding edge between the horizontal plate of settlement angle plate and screed.The application has the advantages of green environmental protection, low cost, good waterproof effect.

The utility model relates to the technical field of glass curtain walls, and particularly discloses a waterproof curtain wall structure capable of absorbing structural errors, which comprises a civil engineering layer, a frame body assembly, a cross beam assembly, curtain wall glass and a waterproof layer, the curtain wall glass is arranged below the cross beam assembly and is connected with the cross beam assembly; the frame body assembly is arranged above the cross beam assembly and connected with the cross beam assembly, and the frame body assembly comprises a top frame located at the top of the frame body assembly; an embedded part is embedded in the bottom of the civil engineering layer, the top frame is located below the civil engineering layer and connected with the embedded part, and the space between the top frame and the civil engineering layer is filled with a waterproof mortar layer. The waterproof layer is tightly attached to the outer side face of the civil engineering layer, the outer side face of the waterproof mortar layer and the outer side face of the top frame. Structural errors caused by unevenness of a civil engineering layer can be absorbed, and the waterproof effect is improved.

The utility model relates to the field of building construction, and particularly discloses a ground super-wear-resistant micro cement construction process structure. By arranging the special interface agent layer, the self-leveling mortar layer, the seal primer, the micro cement, the super wear-resistant finish-coat primer layer and the super wear-resistant finish-coat surface layer, a special interface agent is sprayed on the ground to form the special interface agent layer, holes in the ground are sealed, shrinkage pinholes generated during self-leveling construction are avoided, and the super wear-resistant finish-coat surface layer is formed. Meanwhile, the connection stability between the cement mortar and the foundation ground is improved, a self-leveling mortar layer is arranged on the surface of the special interface agent layer to serve as a main body of the wear-resistant cement terrace, and after the self-leveling mortar layer is dried up and stabilized, seal primer and micro cement are sequentially arranged to ensure that the main body of the self-leveling mortar layer is stable; and finally, the super-wear-resistant finish-coat paint primer layer and the super-wear-resistant finish-coat paint surface layer are arranged on the micro-cement surface, so that the hardness of the surface of the cement terrace is improved, and the wear resistance of the surface of the cement terrace is further improved.

A method for installing a thermal insulation element for thermal decoupling between load-bearing building components made of concrete is described, preferably between a vertical building component, in particular a column, and a horizontal building component above or below it, in particular a floor slab or a foundation slab. The thermal insulation element has a base body that consists at least partially of a compressive force-transmitting and thermally insulating material and has an upper and a lower bearing surface for vertical connection to the building components. Furthermore, the base body has several recesses penetrating it vertically from the upper to the lower bearing surface, which serve as passageways for rod-shaped reinforcing elements, in particular reinforcing bars, extending essentially vertically beyond the upper and lower bearing surfaces.For the installation of the thermal insulation element, it is planned that the rod-shaped reinforcing elements are embedded in concrete in the lower part of the building, and that a planned joint is provided between the lower part of the building and the thermal insulation element, into which a mortar bed is placed after the lower part of the building has hardened when the thermal insulation element is installed.

This utility model belongs to the technical field of support and fixing devices, specifically a support and fixing device for a road paver screed, including a support plate, an extension screed, and a fixing plate. Through the adjustment mechanism, in conjunction with the support plate and the fixing plate, the extension screed and the assembled screed can be easily supported and fixed. The two assembled screeds are mounted on the fixing plate, and the extension screed is slidably mounted on the fixing plate with its opening facing downwards. Rotating the double-ended threaded rod causes two transmission plates to move the two extension plates closer together. The two extension plates, through a connecting plate, move two positioning blocks closer together. The positioning blocks are inserted into the assembled screed, thus supporting and fixing the extension screed and the assembled screed. When it is necessary to disassemble, replace, or maintain the extension screed and the assembled screed, the double-ended threaded rod is reversed, and the positioning blocks disengage from the extension screed, thereby releasing the limiting effect on the extension screed and the assembled screed, allowing for their replacement and maintenance.

The utility model relates to a basement downstream face waterproof structure, which belongs to the technical field of waterproof structures and comprises a capillary crystalline waterproof coating layer arranged on a waterproof structure body, a siliceous cement mortar layer is arranged on the capillary crystalline waterproof coating layer, and the siliceous cement mortar layer comprises waterproof agents. By adopting a limiting technology, the basement exterior wall and the downstream face of the bottom plate are maintained, effective plugging is conducted through a limited material after leakage points are found, the maintenance time efficiency is greatly improved, the concrete capillary pore structure can be effectively improved, a concrete internal capillary pore channel can be blocked, and the anti-seepage and waterproof functions are remarkably improved; meanwhile, the cement has the effects of enhancing, reducing water, resisting crack and the like, can reduce cement hydration heat and inhibit alkali-aggregate reaction, and improves long-term stability; the comprehensive performance can achieve the effects of long-term water resistance, crack resistance, corrosion resistance, moisture resistance and durability improvement; the concrete self-waterproofing agent has excellent compactness, hydrophobicity and impermeability, not only can achieve the self-waterproofing effect of concrete, but also has a micro-expansion effect, and has the advantages of strong interface adhesion, convenience in application, simplicity in operation and lower comprehensive cost.

The application provides a material leveler, and belongs to the technical field of metallurgical sintering processes.The material leveler comprises a top frame, a lifting frame, a lifting mechanism and a vibration assembly; the top frame is fixed on a sintering machine platform steel beam; the lifting mechanism is arranged on the top frame and is used to drive the lifting frame to lift; the lifting frame is arranged below the top frame, and a vibration plate and a material leveler plate are sequentially arranged at the bottom of the lifting frame along the direction in which a trolley travels; the vibration plate and the material leveler plate both have circular arc surfaces for material leveling at the bottom; the vibration plate is transversely and slidably connected to the lifting frame along the length direction of the vibration plate, and the material leveler plate is fixed to the lifting frame; the vibration assembly is arranged on the lifting frame and is used to drive the vibration plate to reciprocatingly slide. The vibration assembly drives the vibration plate to reciprocatingly slide at a high frequency and a short distance, so that dynamic material leveling is realized, the air permeability of the material is effectively improved, the material leveler plate further levels and compacts the material that has been preliminarily processed by the vibration plate, the surface of the material is more uniform, and the sintering effect is improved.