CN111502281A - Municipal engineering clear water concrete pouring construction method - Google Patents
Municipal engineering clear water concrete pouring construction method Download PDFInfo
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- CN111502281A CN111502281A CN202010344318.7A CN202010344318A CN111502281A CN 111502281 A CN111502281 A CN 111502281A CN 202010344318 A CN202010344318 A CN 202010344318A CN 111502281 A CN111502281 A CN 111502281A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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Abstract
The invention discloses a municipal engineering clear water concrete pouring construction method, relates to the technical field of building engineering, and comprises the following steps: s1, preparing a container and a device; s2, template manufacturing; s3, preparing concrete; s4, transportation treatment; s5, pouring; and S6, floating. According to the method, multiple groups of materials are added into the concrete, so that the strength of the concrete is better, the concrete is more environment-friendly, the concrete can be resistant to alkali erosion, the strength of the cured wall is higher, the sealing performance is better, the concrete is vibrated by directly using an external vibrating rod, and the concrete is poured in layers, so that air contained in the concrete is completely escaped, the condition that the temperature difference between the inside and the outside of the solidified concrete is larger is avoided, the surface of the concrete is effectively prevented from sinking when the concrete is solidified, the condition of parting is avoided, and the pouring effect of the concrete is better.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a municipal engineering clear water concrete pouring construction method.
Background
With the development of the building industry, the nation has greatly promoted ecological civilization construction, the environmental awareness of people is improved, people pursue more beauty and environmental protection for buildings, the fair-faced concrete is formed in one step, the natural texture of the formed concrete is directly used as concrete with a facing effect, the fair-faced concrete is novel, green and high-performance concrete integrating structure and decoration, the fair-faced concrete structure is not used for external decoration any more, external decoration materials are saved, the concrete has very important practical significance for saving natural resources and reducing engineering cost, the development of the fair-faced concrete construction technology of China is much later than that of other countries, and the fair-faced concrete is mainly applied to the fair-faced concrete wall panels prefabricated in the internal casting system construction process and is still very lagged in development by 20 th century 70 years.
In the existing construction method for pouring the fair-faced concrete in the municipal engineering, due to the fact that the material in the concrete is too single and other various additives are not contained, cracks can appear after the concrete is poured in the later stage, and other situations occur, so that the wall body is not strong in rigidity, the accidents of collapse in the later stage are easily caused, and more serious loss is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a municipal engineering clear water concrete pouring construction method, which solves the problems that cracks can appear after the concrete is poured in the later period due to the fact that the material in the concrete is too single and other various additives are not contained, and the wall body is easily weak in rigidity and is seriously lost due to the fact that the accidents of later collapse occur due to the fact that other conditions occur.
In order to achieve the purpose, the invention is realized by the following technical scheme: a municipal engineering clear water concrete pouring construction method comprises the following steps:
s1, preparing the container and the device: cleaning a plurality of containing barrels in advance, and preparing a stirring device, a grinding wheel machine, a vibrating rod, a measuring scale, a level bar and a wooden trowel;
s2, template preparation: grinding the outer surfaces of a plurality of sub-templates and the rigid rods in advance by using a grinding machine, cleaning the sub-templates by using cleaning cloth after grinding is finished, welding a plurality of rigid rods with a certain width on the outer surfaces of the sub-templates, coating cement paint with a certain thickness on the outer surfaces of the sub-templates and the rigid rods in advance, placing for a period of time after coating is finished, coating rust-proof grease with a certain thickness on the outer surfaces of the sub-templates and the rigid rods, placing for a period of time, and splicing the sub-templates of which the rigid rods are welded on the outer surfaces by using an external measuring ruler and a horizontal ruler;
s3, concrete preparation: preparing water, an additive, cement, sand, a heat-preservation pouring material, an epoxy pouring sealant and a steel fiber reinforced pouring material in a quantitative ratio in advance, putting the water, the cement and the sand into a stirring device according to a specified ratio, stirring for a period of time, sequentially sending the additive, the heat-preservation pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material into the stirring device according to a ratio, stirring for a period of time after each putting is finished, and finally stirring for a period of time after all the materials are placed;
s4, transportation treatment: placing the prepared concrete into an operating vehicle through an external device, strictly controlling the vehicle speed so as to control the operating time in the vehicle transfer process, and detecting the slump and the color change of the concrete at intervals;
s5, pouring: the method comprises the steps that concrete is poured inside a preset formwork, the rising height of the concrete is observed in the process of pouring the concrete, when the concrete covers a rigid rod at the bottom of the formwork, an external vibrating rod is directly used for vibrating the concrete, the middle position of the concrete is vibrated firstly, then the concrete at the peripheral positions is vibrated in sequence, air bubbles in the concrete are vibrated out after a period of vibration, if the concrete falls below the horizontal position of the rigid rod, the concrete is continuously poured to enable the horizontal plane of the concrete to be level with the horizontal plane of the rigid rod, after no air bubbles are vibrated out, the concrete is continuously poured to enable the concrete to be level with the rigid rod at the upper position and level with the rigid rod, the concrete is sequentially treated by the same method, and the pouring of the formwork is completed;
s6, floating treatment: and trowelling the concrete outside the template by using a wood trowel, conveying quantitative curing glue into the concrete through an external air pipe in the trowelling process, standing for a period of time, and finishing the pouring treatment of the concrete.
Preferably, in the step S2, the width of the rigid rod is set to 2-5cm, the thickness of the cement paint is set to 1-3cm, the thickness of the rust-proof grease is set to 1-2cm, and the cement paint and the rust-proof grease are completely applied for 10-20 min.
Preferably, in the step S3, 150 parts of water, 10-15 parts of admixture, 350 parts of sand, 300-450 parts of cement, 20-40 parts of heat-insulating casting material, 10-30 parts of epoxy casting glue and 10-20 parts of steel fiber reinforced casting material are prepared.
Preferably, the stirring time of the water, the cement and the sand in the step S3 is 10-20min, the admixture, the heat preservation pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material are sequentially added and then stirred for 2-5min, and the internal rotating speed of the stirring device is set at 300-360 r/min.
Preferably, the operation time in step S4 should be controlled within 2H, and the interval time is 10-15 min.
Preferably, the vibrating time in the step S5 is 10-15min, and the internal rotation speed of the vibrating rod is set at 150-200 r/min.
Preferably, in the step S6, during the process of using the wood trowel, a level ruler is used to perform a leveling process on the outer surface of the concrete.
Preferably, the glue in the step S6 is 1-3 parts by mass and stands for 2-4 days.
Advantageous effects
The invention provides a municipal engineering fair-faced concrete pouring construction method. Compared with the prior art, the method has the following beneficial effects:
1. the municipal engineering clear water concrete pouring construction method comprises the step S3 of sequentially adding an additive, a heat preservation pouring material, epoxy pouring sealant and a steel fiber reinforced pouring material to the inside of a stirring device in sequence in proportion, after the pouring is completed each time, the mixture is stirred for a period of time, the heat preservation pouring material has high strength and an alkali corrosion resistance effect, the epoxy pouring sealant is environment-friendly and pollution-free, the dielectric strength is high, the insulating property is good, meanwhile, the excellent sealing property is achieved, the steel fiber reinforced pouring material has fire resistance and high strength, multiple groups of materials are added into concrete, the strength of the concrete can be better, the concrete is more environment-friendly, alkali corrosion resistance can be achieved, the strength of the cured wall body is higher, and the sealing property is better.
2. According to the municipal engineering fair-faced concrete pouring construction method, a plurality of rigid rods with quantitative widths are welded on the outer surface of a sub-formwork in advance through the step S2, concrete is poured into the set formwork in the step S5, the rising height of the concrete is observed in the concrete pouring process, when the concrete covers the rigid rods at the bottom of the formwork, an external vibrating rod is directly used for vibrating the concrete, the concrete is poured in layers, air contained in the concrete is enabled to escape completely, the condition that the internal temperature and the external temperature difference are large after the concrete is solidified is avoided, the surface of the concrete is effectively prevented from sinking when the concrete is solidified, the split condition is caused, and the concrete pouring effect is better.
Drawings
FIG. 1 is a schematic block diagram of the preparation process of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides three technical solutions: a method for analyzing a root tip tabletting based on hairy root culture, comprising the following embodiments:
example 1
S1, preparing the container and the device: cleaning a plurality of containing barrels in advance, and preparing a stirring device, a grinding wheel machine, a vibrating rod, a measuring scale, a level bar and a wooden trowel;
s2, template preparation: grinding the outer surfaces of a plurality of sub-templates and rigid rods in advance by using a grinding machine, cleaning the sub-templates by using a cleaning cloth after grinding is finished, welding a plurality of rigid rods with the quantitative width of 2cm on the outer surfaces of the sub-templates, coating cement paint with the quantitative thickness of 1cm on the outer surfaces of the sub-templates and the rigid rods in advance, placing for 10min after coating is finished, coating rust-proof grease with the quantitative thickness of 1cm on the outer surfaces of the sub-templates, placing for 10min, and splicing the sub-templates of which the outer surfaces are welded with the rigid rods by using an external measuring scale and a horizontal ruler;
s3, concrete preparation: preparing 100 parts of water, 10 parts of an additive, 300 parts of sand, 250 parts of cement, 20 parts of a heat-insulating pouring material, 10 parts of epoxy pouring sealant and 10 parts of a steel fiber reinforced pouring material in advance, putting the water, the cement and the sand into a stirring device with the internal rotating speed set at 300r/min according to a specified proportion, stirring for 10min, then sequentially sending the additive, the heat-insulating pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material into the stirring device according to the proportion, stirring for 2min after each time of putting is finished, and finally, stirring for 2min after all the materials are placed;
s4, transportation treatment: placing the prepared concrete into a running vehicle through an external device, strictly controlling the vehicle speed to be within 2H in the vehicle transferring process, and detecting the slump and the color change of the concrete every 10 min;
s5, pouring: the method comprises the steps that concrete is poured inside a preset template, the rising height of the concrete is observed in the concrete pouring process, when the concrete covers a rigid rod at the bottom of the template, an external vibrating rod with the internal rotating speed set at 150r/min is directly used for vibrating the concrete, the middle position of the concrete is vibrated firstly, then the concrete at the peripheral positions is vibrated for 10min, air bubbles in the concrete are vibrated out, if the concrete falls below the horizontal position of the rigid rod, the concrete is continuously poured to enable the horizontal plane of the concrete to be level with the horizontal plane of the rigid rod, after the air bubbles are vibrated out, the concrete is continuously poured to enable the concrete to be level with the horizontal plane of the rigid rod at the upper position and level with the rigid rod, and the concrete is poured in sequence by the same method, so that the pouring of the template is completed;
s6, floating treatment: and (2) troweling the concrete outside the template by adopting a wood trowel, carrying out horizontal measurement treatment on the outer surface of the concrete by using a horizontal ruler, conveying 1 part of curing glue into the concrete through an external air pipe in the troweling process, standing for 2 days, and finishing the pouring treatment of the concrete.
Example 2
S1, preparing the container and the device: cleaning a plurality of containing barrels in advance, and preparing a stirring device, a grinding wheel machine, a vibrating rod, a measuring scale, a level bar and a wooden trowel;
s2, template preparation: polishing the outer surfaces of a plurality of sub-templates and the rigid rods in advance by using a grinder, cleaning the sub-templates by using a cleaning cloth after polishing, welding a plurality of rigid rods with the quantitative width of 3cm on the outer surfaces of the sub-templates, coating cement paint with the quantitative thickness of 1.5cm on the outer surfaces of the sub-templates and the rigid rods in advance, placing for 15min after coating, coating antirust grease with the quantitative thickness of 1.5cm on the outer surfaces of the sub-templates and the rigid rods, placing for 15min, and splicing the sub-templates of which the outer surfaces are welded with the rigid rods by using an external measuring ruler and a horizontal ruler;
s3, concrete preparation: preparing 125 parts of water, 13 parts of an additive, 320 parts of sand, 375 parts of cement, 30 parts of a heat-insulating pouring material, 20 parts of epoxy pouring sealant and 15 parts of a steel fiber reinforced pouring material in advance, putting the water, the cement and the sand into a stirring device with the internal rotating speed set at 330r/min according to a specified proportion, stirring for 15min, then sequentially sending the additive, the heat-insulating pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material into the stirring device according to the proportion, stirring for 3min after each time of putting is finished, and finally, stirring for 3min after all the materials are placed;
s4, transportation treatment: placing the prepared concrete into a running vehicle through an external device, strictly controlling the vehicle speed to be within 2H in the vehicle transfer process, and detecting the slump and the color change of the concrete every 12 min;
s5, pouring: the method comprises the steps that concrete is poured inside a preset formwork, the rising height of the concrete is observed in the concrete pouring process, when the concrete covers a rigid rod at the bottom of the formwork, an external vibrating rod with the internal rotating speed set to be 170r/min is directly used for vibrating the concrete, the middle position of the concrete is vibrated firstly, then the concrete at the peripheral positions is vibrated for 13min, air bubbles in the concrete are vibrated out, if the concrete falls below the horizontal position of the rigid rod, the concrete is continuously poured to enable the horizontal plane of the concrete to be level with the horizontal plane of the rigid rod, after the air bubbles are vibrated out, the concrete is continuously poured to enable the concrete to be level with the horizontal plane of the rigid rod at the upper position and level with the rigid rod, and the concrete is poured in sequence by the same method, so that the pouring of the formwork is completed;
s6, floating treatment: and (3) troweling the concrete outside the template by adopting a wood trowel, carrying out horizontal measurement treatment on the outer surface of the concrete by using a horizontal ruler, conveying 2 parts of curing glue into the concrete through an external air pipe in the troweling process, standing for 3 days, and finishing the pouring treatment of the concrete.
Example 3
S1, preparing the container and the device: cleaning a plurality of containing barrels in advance, and preparing a stirring device, a grinding wheel machine, a vibrating rod, a measuring scale, a level bar and a wooden trowel;
s2, template preparation: grinding the outer surfaces of a plurality of sub-templates and the rigid rods in advance by using a grinding machine, cleaning the sub-templates by using a cleaning cloth after grinding is finished, welding a plurality of rigid rods with the quantitative width of 5cm on the outer surfaces of the sub-templates, coating cement paint with the quantitative thickness of 2cm on the outer surfaces of the sub-templates and the rigid rods in advance, placing for 20min after coating is finished, coating rust-proof grease with the quantitative thickness of 2cm on the outer surfaces of the sub-templates, placing for 20min, and splicing the sub-templates of which the outer surfaces are welded with the rigid rods by using an external measuring scale and a horizontal ruler;
s3, concrete preparation: preparing 150 parts of water, 15 parts of an additive, 350 parts of sand, 450 parts of cement, 40 parts of a heat-preservation pouring material, 30 parts of epoxy pouring sealant and 20 parts of a steel fiber reinforced pouring material in advance, putting the water, the cement and the sand into a stirring device with the internal rotating speed set at 360r/min according to a specified proportion, stirring for 20min, then sequentially sending the additive, the heat-preservation pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material into the stirring device according to the proportion, stirring for 5min after each time of putting is finished, and finally, stirring for 5min after all the materials are placed;
s4, transportation treatment: placing the prepared concrete into a running vehicle through an external device, strictly controlling the vehicle speed to be within 2H in the vehicle transferring process, and detecting the slump and the color change of the concrete every 15 min;
s5, pouring: the method comprises the steps that concrete is poured inside a preset template, the rising height of the concrete is observed in the concrete pouring process, when the concrete covers a rigid rod at the bottom of the template, an external vibrating rod with the internal rotating speed set to be 200r/min is directly used for vibrating the concrete, the middle position of the concrete is vibrated firstly, then the concrete at the peripheral positions is vibrated for 15min, air bubbles in the concrete are vibrated out, if the concrete falls below the horizontal position of the rigid rod, the concrete is continuously poured to enable the horizontal plane of the concrete to be level with the horizontal plane of the rigid rod, after the air bubbles are vibrated out, the concrete is continuously poured to enable the concrete to be level with the horizontal plane of the rigid rod at the upper position and level with the rigid rod, and the concrete is poured in sequence by the same method, so that the pouring of the template is completed;
s6, floating treatment: and (3) troweling the concrete outside the template by using a wood trowel, carrying out horizontal measurement treatment on the outer surface of the concrete by using a horizontal ruler, conveying 3 parts of curing glue into the concrete through an external air pipe in the troweling process, standing for 4 days, and finishing the pouring treatment of the concrete.
Experiment of
The concrete slabs produced according to the three examples above were compared with the concrete slabs of the prior art in terms of their performance in actual use, and a manufacturer made the following tests:
correspondingly, the concrete slabs prepared by the three embodiments and the concrete slab appearing in the market are taken, four concrete slabs are placed at the output end of the hydraulic cylinder, an external operator controls and adjusts the output pressure of the hydraulic cylinder, and the data displayed by the bearing pressure of the four different concrete slabs are shown in the following table;
concrete slab bearing pressure display meter
| Concrete slab | Existing | Example 1 | Example 2 | Example 3 |
| pressure/N | 832 | 893 | 942 | 913 |
From the data shown in the above table, it can be seen that the concrete slabs produced in the above three examples are superior to those produced in the prior art in terms of bearing pressure, while the concrete slabs produced in the three examples are superior to those produced in the prior art in terms of bearing pressure.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The municipal engineering clear water concrete pouring construction method is characterized by comprising the following steps:
s1, preparing the container and the device: cleaning a plurality of containing barrels in advance, and preparing a stirring device, a grinding wheel machine, a vibrating rod, a measuring scale, a level bar and a wooden trowel;
s2, template preparation: grinding the outer surfaces of a plurality of sub-templates and the rigid rods in advance by using a grinding machine, cleaning the sub-templates by using cleaning cloth after grinding is finished, welding a plurality of rigid rods with a certain width on the outer surfaces of the sub-templates, coating cement paint with a certain thickness on the outer surfaces of the sub-templates and the rigid rods in advance, placing for a period of time after coating is finished, coating rust-proof grease with a certain thickness on the outer surfaces of the sub-templates and the rigid rods, placing for a period of time, and splicing the sub-templates of which the rigid rods are welded on the outer surfaces by using an external measuring ruler and a horizontal ruler;
s3, concrete preparation: preparing water, an additive, cement, sand, a heat-preservation pouring material, an epoxy pouring sealant and a steel fiber reinforced pouring material in a quantitative ratio in advance, putting the water, the cement and the sand into a stirring device according to a specified ratio, stirring for a period of time, sequentially sending the additive, the heat-preservation pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material into the stirring device according to a ratio, stirring for a period of time after each putting is finished, and finally stirring for a period of time after all the materials are placed;
s4, transportation treatment: placing the prepared concrete into an operating vehicle through an external device, strictly controlling the vehicle speed so as to control the operating time in the vehicle transfer process, and detecting the slump and the color change of the concrete at intervals;
s5, pouring: the method comprises the steps that concrete is poured inside a preset formwork, the rising height of the concrete is observed in the process of pouring the concrete, when the concrete covers a rigid rod at the bottom of the formwork, an external vibrating rod is directly used for vibrating the concrete, the middle position of the concrete is vibrated firstly, then the concrete at the peripheral positions is vibrated in sequence, air bubbles in the concrete are vibrated out after a period of vibration, if the concrete falls below the horizontal position of the rigid rod, the concrete is continuously poured to enable the horizontal plane of the concrete to be level with the horizontal plane of the rigid rod, after no air bubbles are vibrated out, the concrete is continuously poured to enable the concrete to be level with the rigid rod at the upper position and level with the rigid rod, the concrete is sequentially treated by the same method, and the pouring of the formwork is completed;
s6, floating treatment: and trowelling the concrete outside the template by using a wood trowel, conveying quantitative curing glue into the concrete through an external air pipe in the trowelling process, standing for a period of time, and finishing the pouring treatment of the concrete.
2. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: in the step S2, the width of the rigid rod is set to be 2-5cm, the thickness of the cement coating is set to be 1-3cm, the thickness of the antirust grease is set to be 1-2cm, and the cement coating and the antirust grease are completely coated and placed for 10-20 min.
3. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: in the step S3, 150 parts of water 100, 10-15 parts of admixture, 350 parts of sand 300, 450 parts of cement 250, 20-40 parts of heat-preservation pouring material, 10-30 parts of epoxy pouring sealant and 10-20 parts of steel fiber reinforced pouring material are prepared.
4. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: and step S3, stirring the water, the cement and the sand for 10-20min, stirring for 2-5min after the admixture, the heat-preservation pouring material, the epoxy pouring sealant and the steel fiber reinforced pouring material are sequentially added, and setting the internal rotating speed of the stirring device at 360r/min of 300-.
5. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: the operation time in step S4 should be controlled within 2H, and the interval time is 10-15 min.
6. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: the vibrating time in the step S5 is 10-15min, and the internal rotation speed of the vibrating rod is set at 150-200 r/min.
7. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: in the step S6, in the process of using the wooden trowel, a level ruler is used to measure the level of the outer surface of the concrete.
8. The municipal engineering fair-faced concrete pouring construction method according to claim 1, characterized in that: and (4) standing for 2-4 days, wherein the mass ratio of the glue in the step S6 is 1-3.
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Application publication date: 20200807 |