CN113235863A - Epoxy terrace construction method for preventing cracking and settlement - Google Patents
Epoxy terrace construction method for preventing cracking and settlement Download PDFInfo
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- CN113235863A CN113235863A CN202110534831.7A CN202110534831A CN113235863A CN 113235863 A CN113235863 A CN 113235863A CN 202110534831 A CN202110534831 A CN 202110534831A CN 113235863 A CN113235863 A CN 113235863A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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Abstract
The invention belongs to the technical field of building finishing engineering, and particularly relates to a construction method of an epoxy terrace for preventing cracking and settlement. The construction method comprises the steps of foundation surface treatment, bottom layer material construction, middle layer material construction, surface layer material construction and maintenance. The construction method of the invention treats the cracks on the base surface in advance, prevents the cracks from further developing and plays a role in preventing the cracks from cracking again; the grouting is adopted to treat the base surface at the hollowing position, so that the sedimentation is avoided; the construction method of the invention ensures that the epoxy terrace material has good compatibility with the substrate concrete, good use durability and difficult shedding; the construction method of the invention has no health hazard to constructors, no environmental pollution, no toxicity and no pollution of materials, meets the requirement of environmental protection, has simple construction procedures and is easy to ensure the construction quality.
Description
Technical Field
The invention belongs to the technical field of building finishing engineering, and particularly relates to a construction method of an epoxy terrace for preventing cracking and settlement.
Background
The epoxy floor (namely, the epoxy resin floor) is a floor with high strength, wear resistance and attractive appearance, has the advantages of no seam, strong corrosion resistance, easiness in cleaning, low maintenance cost, high construction speed, short maintenance period and the like, can be widely applied to subsequent civil engineering construction projects, and becomes a mainstream construction process for room floor construction. However, the epoxy terrace is a brittle decoration surface layer, so that the thickness is extremely thin, and the phenomena of settlement and cracking are easy to occur.
Taking a vehicle section of a fertilizer-combining subway No. 4 line scientific city built by a seventh engineering group company Limited in nine departments of Medium-iron as an example, the epoxy terrace ground in the section is provided with building monomers such as a material main warehouse, an engineering garage, a dispatching garage, an overhaul warehouse, an application warehouse and the like, and the maximum warehouse construction area is 31657m2And the peripheral grooves are more, and the phenomenon of epoxy terrace cracking easily appears when improper treatment.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a construction method of an epoxy terrace for preventing cracking and settlement, and aims to solve the problems that the existing epoxy terrace is easy to crack and fall off and poor in durability after being paved.
In order to achieve the purpose, the invention provides the following technical scheme:
a construction method of an epoxy terrace for preventing cracking and settlement comprises the following steps:
step one, base surface treatment:
pouring a base layer to obtain a base surface, and then processing the base surface as required;
step two, constructing a bottom layer material:
mixing the bottom layer material according to a given proportion and a given preparation method, then coating the bottom layer material on a base surface in a blade mode, and then maintaining to form a first base surface;
step three, constructing a middle layer material:
mixing the middle layer material according to a given proportion and a given preparation method, and then coating the middle layer material on the first base surface twice to form a second base surface;
step four, constructing a surface layer material:
mixing the surface layer materials according to a given proportion and a given preparation method, and then coating the surface layer materials on a second base surface;
step five, maintenance:
naturally curing the constructed epoxy terrace;
in the first step, the processing of the base surface comprises:
and (3) grouting the base surface with the hollowing, wherein the grouting treatment comprises the following steps: arranging grouting holes every 800mm, wherein the grouting pressure is 0.2-0.5 MPa; the grouting speed is 12-20L/min;
performing the treatment of seam expanding, repairing, floating and filling on the foundation surface with regular cracks;
and (3) for the base surface with irregular cracks and expansion joints, opening a V-shaped opening at the crack, then sequentially coating the epoxy resin adhesive, the middle layer material and the bottom layer material, and then polishing.
As an improvement of the above construction method, it is preferable that the slurry used in the grouting treatment is a slurry of ordinary portland cement and water.
As an improvement to the above construction method, the cement paste preferably has a water cement ratio of (0.5-1): 1.
As an improvement to the above-mentioned construction method, it is preferableThe grouting amount of a single grouting hole is 0.8m3The above.
As an improvement to the above construction method, it is preferable that the crack is widened to 20mm to facilitate the inflow of the repair slurry.
As an improvement to the construction method, in the second step, the curing time is preferably 36 to 48 hours.
As an improvement to the above construction method, preferably, in the third step, the two-time painting comprises:
the first pass is used for filling the defect positions in the first base plane;
and the second time is used for carrying out blade coating on the whole first base surface, and the second base surface is formed after curing.
As an improvement of the construction method, in the fourth step, preferably, the surface material is mixed, cured for 2-3 minutes, and then brushed, wherein brushing is blade coating.
As an improvement to the above construction method, in the fifth step, the curing period of the natural curing is preferably 7 days.
Has the advantages that:
compared with the common terrace, the epoxy terrace has the following characteristics:
(1) the cracks on the base surface are treated in advance, so that the cracks are prevented from further developing, and the effect of preventing the cracks from cracking again is achieved;
(2) the grouting process is adopted to treat the base surface at the hollowing position, so that the occurrence of sedimentation is avoided;
(3) the construction method of the invention ensures that the epoxy terrace material has good compatibility with the substrate concrete, good use durability and difficult shedding;
(4) the construction method of the invention has no health hazard to constructors, no environmental pollution, no toxicity and no pollution of materials, meets the requirement of environmental protection, has simple construction procedures and is easy to ensure the construction quality.
Has the advantages that:
compared with the common terrace, the epoxy terrace has the following characteristics:
(1) the cracks on the base surface are treated in advance, so that the cracks are prevented from further developing, and the effect of preventing the cracks from cracking again is achieved;
(2) the grouting process is adopted to treat the base surface of the hollowing position, so that the settlement is avoided;
(3) the construction method of the invention ensures that the materials (including the bottom layer material, the middle layer material and the surface layer material) used for the construction of the epoxy terrace have good compatibility with the foundation surface and good use durability, and are not easy to fall off;
(4) the construction method of the invention meets the requirement of environmental protection, has simple construction process and is easy to ensure the construction quality.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The present invention will be described in detail with reference to examples. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The construction method of the anti-cracking and anti-settling epoxy terrace mainly comprises the following five working procedures:
the first procedure is foundation surface treatment, which is mainly to perform grouting and existing crack treatment on the hollowing position, wherein the foundation surface is formed by pouring concrete; the existing cracks comprise regular cracks and irregular cracks formed after concrete pouring and also comprise artificially arranged expansion joints;
the second procedure is the construction of the bottom layer material, and has the functions of infiltrating and sealing the capillary holes of the concrete or cement mortar, so that the bottom layer material and the concrete in the foundation surface form numerous fine anchoring bodies, the bonding force with the concrete of the foundation surface is improved, the solidified bottom layer material seals the capillary holes of the concrete, and the defects of shrinkage and the like possibly caused by the infiltration of the surface layer material in the subsequent procedures are prevented;
the third procedure is the construction of the middle layer material, which mainly has the function of filling and leveling the pits which cannot be filled and leveled after the construction of the bottom layer material;
the fourth procedure is surface material construction, and floating ash is removed before the surface material construction; except for concrete structure seams, the surface layer material is constructed and formed in one step, and is not divided into seams and blocks;
the fifth procedure is maintenance, and natural maintenance is carried out after the fourth procedure is finished. According to the construction method of the anti-cracking and anti-settling epoxy terrace, the cracks on the foundation surface are treated in advance, so that the cracks are prevented from further developing, and the effect of preventing the cracks from cracking again is achieved; the grouting process is adopted to treat the base surface of the hollowing position, so that the settlement is avoided; in addition, the material used for the epoxy floor construction has good adhesion and wear resistance, good flexibility, and a linear thermal expansion coefficient which is closer to that of concrete, so that the service durability of the floor can be improved. The characteristics of one-step molding, no seam separation and no block separation on the surface of the epoxy terrace prevent hidden dead angles of dirt and dust, and have the effects of moisture protection, bacteria prevention and mildew prevention. The performance of the preferable material for the construction of the epoxy terrace determines the characteristics of skid resistance, chemical corrosion resistance, heavy pressure resistance, static resistance, oil stain resistance and the like of the epoxy terrace, and the epoxy terrace has novel environmental protection performance.
In the embodiment of the invention:
the bottom layer material is also called epoxy resin adhesive, in particular to universal epoxy primer which is purchased from Changzhou blue and sun paint company Limited and has the model number of LY-HY-117;
the middle layer material consists of middle layer paint and middle layer curing agent, the mass ratio of the middle layer paint to the middle layer curing agent is 4: 1, the middle layer material is purchased from Changzhou blue and sun coating limited company, and the model number of the middle layer material is LY-HY-118;
the surface layer material is SX inorganic polymer mortar which is purchased from Changzhou blue-sun coating Co., Ltd and has the model of SH-WJ-103.
Next, each step will be described in detail.
(I) treatment of basal planes
Firstly, pouring a base layer to obtain a base surface, and then processing the base surface.
The basic unit is pour, namely basic unit concrete placement (namely concrete placement), must control good surface smoothness when pouring:
1. after concrete pouring and vibrating, two construction measuring personnel are specially responsible for on-site rechecking of the elevation according to the elevation of the mark, the low place is filled with concrete, the high place is removed by a spade, rough leveling is carried out by an aluminum alloy large scraper, wood is screeded, rubbed and compacted, and the flatness is controlled within (0, 10) mm.
2. After concrete is poured for about 1-2 hours, trowelling is carried out, a measurer controls the level height by using a sweeping instrument, an aluminum alloy scraper with the length of 3m is used for scraping the concrete surface, protruding stones are shot in or discharged out by using a square shovel, and concrete grout of the same level is used for filling; after rough leveling, the whole floor concrete surface is vibrated, scraped and lifted again by the vibrating ruler, leveling is achieved, the concrete surface which cannot be lifted locally adopts slurry supplement (original concrete slurry), and in the leveling and slurry lifting construction process, measuring personnel perform whole-process measurement control, so that the accuracy of the elevation of the concrete surface is ensured.
3. After the concrete surface is leveled and the slurry is extracted, the scraper is used for manual leveling again, the wooden trowel is used for leveling, then the polishing machine is used for polishing the concrete surface, the positions of the explosion-prone points such as the internal and external corners, the threading pipe and the like are leveled and polished by a specially-assigned person, and the polishing and leveling are carried out for multiple times until the quality standard is met, and the flatness is controlled within (0, 3) mm.
4. The surface of the base concrete is smooth. And the flatness is checked by adopting a 2m ruler, and the flatness meets the requirement that the height difference is not more than 2 mm. And if the flatness of the foundation surface does not meet the requirements, leveling treatment such as wire drawing elevation, grinding, backfilling and the like is performed in advance according to the field condition.
Forming a foundation surface after the base course pouring is finished, and then carrying out further treatment according to the requirement, wherein the method specifically comprises the following steps:
1. and (4) checking the foundation surface, namely checking whether hollowing exists or not by adopting a hammer and beating mode, and if the hollowing is found, immediately marking and grouting. The specific treatment is as follows:
1) grouting is carried out by adopting a small-hole grouting mode (a grouting pipe is formed by processing a phi 42 multiplied by 2.25mm hot rolled steel pipe, the diameter of the grouting pipe is 42mm, and the wall thickness of the steel pipe is 2.25 mm);
2) grouting hole arrangement
The grouting holes are arranged according to the permeability and the porosity of the foundation, the soil characteristics displayed by the exploration results are combined with the similar engineering construction experience, and the grouting diffusion radius is 800mm, namely, the grouting holes are arranged every 800 mm.
3) Proportioning of the slurries
The grouting adopts cement paste made of ordinary Portland cement with the strength grade of 42.5 and water, and the water-cement ratio is 1: 1.
The invention selects the ordinary portland cement for the following reasons:
1. high early strength, high setting and hardening speed and low construction cost compared with other high-strength cement.
2. On-site construction observation shows that no water leakage or water seepage occurs after the stratum is poured by the base concrete, so that special impervious cement is not required to be selected during grouting, construction cost is saved on the premise of ensuring construction quality, and only ordinary portland cement is selected.
3. Compared with non-cement-based slurry materials, the Portland cement has the advantages of good durability, no toxicity, no pollution and the like, the water-cement ratio is generally preferably (0.5-1) to 1 (such as 0.5: 1, 0.6: 1, 0.7: 1, 0.8: 1, 0.9: 1 and 1: 1), the water-cement ratio is convenient to construct when being too large, but the foundation reinforcement quality is affected, and the construction is difficult when being too small, so that the foundation reinforcement uniformity is reduced, and the quality is affected and the effect of preventing later settlement is not achieved. The construction is tested in a small range for many times on site, and the water-cement ratio is 1: 1, so that the effect is optimal. The water cement ratio of cement paste for reinforcing different soil qualities is determined according to the comprehensive consideration of the soil qualities, construction machinery and other factors, the optimal mixing ratio of the water cement ratio needs to be tested in a small field range, and large-area construction can be carried out after the test.
4) Grouting parameters
(1) Grouting pressure: the pressure is 0.2 to 0.5MPa (e.g., 0.2MPa, 0.25MPa, 0.3MPa, 0.35MPa, 0.4MPa, 0.45MPa, 0.5 MPa). Generally, the test is needed to verify on site, and whether the pressure value is suitable or not is finally verified so as to ensure that the slurry affects the radius and the reinforcing effect. The field test result shows that the grouting pressure is controlled to be 0.2-0.5 MPa as the best, the small grouting pressure can cause the small reinforcing range, the small infiltration filling strength, the small depth and the small reinforcing effect; excessive grouting pressure may cause some damage to surrounding structures.
(2) Grouting speed: the grouting speed is controlled to be 12-20L/min (for example, 12L/min, 13L/min, 14L/min, 15L/min, 16L/min, 17L/min, 18L/min, 19L/min and 20L/min).
(3) Grouting standard:
the single-hole grouting amount is 0.8m3Above, e.g. 0.8 to 1m3(e.g., 0.8 m)3、0.85m3、0.9m3、0.95m3、1m3)；
② the grouting pressure exceeds the design value (the experimental determination value) by 0.2MPa, and the slurry flow is not more than 20L/min.
5) Grouting construction
(1) And (6) forming holes. And (4) accurately positioning the grouting hole according to the site measurement, vertically drilling, and adopting a slightly inclined hole in part of positions such as condition limitation. Pore diameter: and (6) drilling holes with a drill or a pneumatic drill or a hammering method in a dry drilling manner after the diameter is 43 mm.
(2) And (5) burying the pipe. And after hole forming, putting the manufactured grouting pipe to the designed depth. The grouting pipe is formed by processing a phi 42 multiplied by 2.25mm hot rolled steel pipe, the diameter of the grouting pipe is 42mm, the wall thickness of the steel pipe is 2.25mm, phi 6mm @120mm quincunx flower-shaped eye pulp overflowing holes (the diameter of the opening is 6mm, one hole is drilled at intervals of 120mm in length) which are bilaterally symmetrical are processed on the grouting pipe below a pulp injection opening, and the diameter of the bottom of the grouting pipe is gradually reduced so that the grouting pipe can be conveniently inserted into a hollow drum position. And according to the length of the deeply anchored and buried grouting pipe of the grouting hole, the grouting hole is sealed by using rubber or adhesive paper. The gap between the 200mm area of the upper part of the grouting pipe and the grouting hole is blocked by clay balls or cement mortar.
(3) And (6) grouting. After the high-pressure rubber pipe is connected with the grouting pipe, the grouting pump is used for pressing in cement paste, and the pressure is controlled by taking a natural structure which does not damage a stratum as a control principle, and is preferably gradually applied from small to large.
2. If the surface of the concrete has regular cracks, the crack needs to be expanded first. The construction is as follows:
1) expanding seam
Because the general crack of foundation face is less, repair epoxy glue can't flow into in the seam, need carry out the dilatation processing to the crack with the concrete cutting machine, the crack widens to 20 mm.
2) Cleaning up
After crack expansion is finished, an air compressor is used for blowing off chips and sundries inside cracks, and clear water is used for cleaning.
3) Crack repair
The epoxy resin glue (adopting the general epoxy primer) is filled into the crack gap, the epoxy resin glue is filled into the crack and then is continuously filled, the filling height of the epoxy resin glue exceeds the base surface by about 2mm, and the filling coefficient of the crack is ensured.
4) Trowelling
The method is the most critical step for treating cracks, the leveling treatment cannot be immediately carried out after the epoxy resin adhesive is filled, and the leveling treatment must be carried out after the epoxy resin adhesive is initially set (a certain time for the epoxy resin adhesive to penetrate into the cracks is given to ensure that the epoxy resin adhesive can sufficiently penetrate into the cracks).
5) Supplementary irrigation
Because some cracks have larger cracking depth and the amount of the epoxy resin glue filled in one time is not enough, secondary filling is needed, and the filling method is the same as the first filling method.
In particular, the following treatment is performed for irregular cracks and expansion joints:
firstly, cutting the crack and the expansion joint into a V-shaped opening by a cutting machine along the trend of the crack and the expansion joint, and completely cleaning dust in the V-shaped opening;
secondly, brushing the epoxy resin glue in the cleaned V-shaped opening by using a brush to form penetration; then, filling and leveling the V-shaped opening by using the uniformly stirred middle layer material, and keeping the whole terrace into a whole;
thirdly, after the middle layer material is solidified, coating epoxy resin glue by using a brush, and infiltrating the repaired seam again;
fourthly, after the middle layer material and the epoxy resin adhesive are completely cured, the polishing procedure is carried out along the direction of the cutting seam.
3. Polishing treatment of base surface
According to different conditions of the construction area of the foundation surface and environmental conditions, an electric angle grinder can be used for directly grinding, and a medium-sized dust-free grinder can also be used for grinding.
1) The grinding method of the angle grinder adopts an electric angle grinder, and uses a diamond grinding disc and a bowl-shaped steel wire brush to carry out grinding treatment on a base surface. Firstly, a diamond angle grinder with a dust collector is used for removing the latex skin and dirt on the surface of the concrete, and then an electric steel wire brush and the dust collector are used for removing loose particles and dust. The processing method has the advantages that: the construction is flexible and light, and no disturbance is caused to the aggregate of the foundation surface. The disadvantages are that: the construction efficiency is low and a small amount of dust exists.
2) The grinding method of the medium-sized dust-free grinding machine is a grinding method that the grinding machine and an industrial dust collector which is matched and connected work together, and dust generated in the grinding process is directly sucked into a dust collecting barrel by the dust collector. The processing method has the advantages that: the construction efficiency is high, and the grinding process does not produce dust, does not have the influence to the surrounding environment. The disadvantages are that: the machine is heavy and is only suitable for large-area grinding.
3) And after polishing, cleaning dust on the surface of the concrete by using a dust collector, and after the concrete is qualified in acceptance (the periphery is dense, the surface is dry, and loose particles, dust, weak layers and other pollutants are not generated), leaving the construction site by constructors, closing the construction site and preventing the external dust from polluting the treated foundation surface.
(II) construction of base layer Material
1. The bottom layer material is weighed and mixed according to the given proportion and preparation method. The bottom layer material should be mixed immediately before use, so as to avoid the influence on the painting quality due to too long time, which causes material waste and bonding quality reduction.
2. After the bottom layer material is stirred, the bottom layer material is uniformly coated on the foundation surface by using a roller or a scraper, and the bottom layer material is required to be as thin and uniform as possible, and does not flow or scrape, and is not leaked, and the bottom layer material is fully permeated in concrete, so that the aim of sealing the air holes on the surface of the concrete is fulfilled.
3. After the bottom layer material is constructed, the construction site is sealed for maintenance for 36-48 hours to form a first base surface (i.e., a surface formed by coating the bottom layer material on the base surface).
(III) construction of middle layer material
1. The middle layer material should be mixed for use immediately, so as to avoid the influence on the coating and scraping quality due to too long time, thereby avoiding material waste and bonding quality reduction.
2. Before the middle layer material is constructed, the phenomenon of bottom material brushing leakage is checked, and if the bottom material brushing leakage exists, the bottom material is needed to be brushed.
3. The defects of potholes, pitted surfaces and the like of the first base surface are taken as the key points of filling and leveling of the first-pass middle layer material.
4. The second construction of the middle layer material requires that the whole first base surface is coated and scraped until the low-lying and small pits are filled, the coated and scraped middle layer material is flat and smooth, no scratch is generated, and the phenomena of stubbles, bulges and the like cannot be left, and the second base surface is formed after the second construction is finished and maintained.
(IV) construction of surface layer material
1. The surface material should be mixed immediately before use so as to avoid the influence on the painting quality caused by too long time.
2. Before the surface layer construction, the surface of the second base surface is slightly roughened by a dust-free grinder, and is lightly polished by a small grinder, so that the base surface is prevented from being ground into a new pit groove or exposed out of the concrete base surface, and then floating ash on the base surface is removed by a dust collector.
3. The construction of the surface layer material requires that the mixed and cured surface layer material is poured on the surface to be constructed for 2 to 3 minutes, a special sawtooth trowel or a push harrow is used for scraping, and the inclination angle between the sawtooth and the base surface is adjusted according to the designed thickness of the epoxy floor. During construction, the corners of the wall and horns are treated by a sawtooth trowel and then integrally trowelled once, so that the coating is required to be uniform and not missed. The defoaming treatment is carried out by using a defoaming roller while scraping and coating, and the roller can not be leaked during defoaming and is repeatedly carried out. The construction of the surface material needs to keep continuity, and after one-time construction is finished, construction can not be carried out after partial area is solidified, so that the phenomenon of remaining and connecting stubbles is avoided. When the designed film layer is thin (the film layer cannot be scraped by a scraper), continuous rolling brush construction can be carried out by using a roller.
4. And after the surface layer construction is finished, the construction site is closed.
(V) curing
The constructed epoxy terrace needs natural maintenance, and the maintenance period is generally 7 days. In the first 6 hours of the curing period, water immersion, winged insects, dust and the like are prevented from entering, people are prohibited to step within 3 days, the fastening condition of the square and round button wedge is observed in real time in the pouring process of preventing hard objects from being scraped within 7 days, and if the square and round button wedge is loosened, the square and round button wedge is immediately used for tamping.
The performance test of the epoxy floor of the invention adopting the construction method is carried out, and the performance test result is shown in table 1.
Table 1 performance test results of the epoxy flooring of the present invention
The epoxy terrace built by the construction method mainly has the following quality advantages:
(1) when the environmental temperature is 25 ℃, the concrete is completely dried after 2 to 3 days of construction, namely the hardness reaches about 80 percent of the finished curing;
(2) the surface does not have sticky phenomenon;
(3) no coarse impurities exist, but the tiny defect caused by falling of floating dust in the air is allowed;
(4) the surface of the epoxy floor is flat and smooth, the glossiness meets the design requirements (high glossiness is more than or equal to 90, bright glossiness is more than or equal to 70, and half gloss is 50-70), and the flat coating type is bright, and the water-based type is half gloss to no gloss;
(5) the orange peel and mortar anti-skid surface effect is obvious;
(6) air bubbles: the flat coating type and the mortar type have no bubbles, and the self-leveling type allows 1 small bubble/10 square meters;
(7) the leveling property is good, no trowel mark exists, and a large-area interface is basically flat;
(8) no floating color and no floating color, uniform and consistent color, and extremely insignificant color difference is allowed at a large-area interface.
The epoxy floor construction method for preventing cracking and settlement is suitable for large-scale factory buildings such as textile factories, electronic factories, pharmaceutical factories, automobile factories, precision instrument production workshops and the like, and large-area epoxy floor construction places such as hospitals, aviation and aerospace bases, laboratories, supermarkets, parking lots and the like, and can play a role in preventing cracking.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The construction method of the epoxy terrace capable of preventing cracking and settlement is characterized by comprising the following steps:
step one, base surface treatment:
pouring a base layer to obtain a base surface, and then processing the base surface as required;
step two, constructing a bottom layer material:
mixing a bottom layer material according to a given proportion and a given preparation method, then coating the bottom layer material on the base surface in a blade mode, and then maintaining to form a first base surface;
step three, constructing a middle layer material:
mixing the middle layer material according to a given proportion and a given preparation method, and then coating the middle layer material on the first base surface twice to form a second base surface;
step four, constructing a surface layer material:
mixing the surface layer materials according to a given proportion and a given preparation method, and then coating the surface layer materials on a second base surface;
step five, maintenance:
naturally curing the constructed epoxy terrace;
in the first step, the processing the base surface includes:
for the foundation surface with the hollowing, performing grouting treatment, wherein the grouting treatment comprises the following steps: arranging grouting holes every 800mm, wherein the grouting pressure is 0.2-0.5 MPa; the grouting speed is 12-20L/min;
performing the treatment of seam expanding, repairing, floating and filling on the foundation surface with regular cracks;
and (3) for the base surface with irregular cracks and expansion joints, opening a V-shaped opening at the crack, then sequentially coating the epoxy resin adhesive, the middle layer material and the bottom layer material, and polishing.
2. The construction method of the anti-cracking and anti-settling epoxy floor as claimed in claim 1, wherein the slurry used in the grouting process is a cement slurry composed of ordinary portland cement and water.
3. The anti-cracking and anti-settling epoxy floor construction method according to claim 2, wherein the water-cement ratio of the cement slurry is (0.5-1) to 1.
4. The anti-cracking and anti-settling epoxy floor construction method according to claim 2, wherein the grouting amount of a single grouting hole is 0.8m3The above.
5. The anti-cracking and anti-settling epoxy floor construction method according to claim 1, wherein the crack is widened to 20mm to facilitate inflow of repair slurry.
6. The construction method of the anti-cracking and anti-settling epoxy terrace as claimed in claim 1, wherein in the second step, the curing time is 36-48 hours.
7. The construction method of the anti-cracking and anti-settling epoxy terrace as claimed in claim 1, wherein in the third step, the two-time painting comprises:
the first pass is used for filling the defect positions in the first base plane;
and the second time is used for carrying out blade coating on the whole first base surface, and the second base surface is formed after curing.
8. The construction method of the anti-cracking and anti-settling epoxy floor as claimed in claim 1, wherein in the fourth step, the surface material is mixed, cured for 2-3 minutes, and then coated, and the coating is blade coating.
9. The construction method of the anti-cracking and anti-settling epoxy terrace as claimed in claim 1, wherein in the fifth step, the natural maintenance period is 7 days.
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