CN201817820U - Nonmetallic material-reinforced unsaturated polyester resin inspection well lid - Google Patents
Nonmetallic material-reinforced unsaturated polyester resin inspection well lid Download PDFInfo
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- CN201817820U CN201817820U CN2010202853966U CN201020285396U CN201817820U CN 201817820 U CN201817820 U CN 201817820U CN 2010202853966 U CN2010202853966 U CN 2010202853966U CN 201020285396 U CN201020285396 U CN 201020285396U CN 201817820 U CN201817820 U CN 201817820U
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- 229920006337 unsaturated polyester resin Polymers 0.000 title claims abstract description 48
- 238000007689 inspection Methods 0.000 title claims abstract description 20
- 239000010410 layer Substances 0.000 claims abstract description 143
- 239000003365 glass fiber Substances 0.000 claims abstract description 110
- 239000004744 fabric Substances 0.000 claims abstract description 86
- 229920005989 resin Polymers 0.000 claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 46
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 239000007769 metal material Substances 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims 2
- 239000002344 surface layer Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000004568 cement Substances 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- -1 electricity Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 48
- 239000003795 chemical substances by application Substances 0.000 description 26
- 229910000019 calcium carbonate Inorganic materials 0.000 description 24
- 239000011248 coating agent Substances 0.000 description 22
- 238000000576 coating method Methods 0.000 description 22
- 238000002360 preparation method Methods 0.000 description 16
- 238000002156 mixing Methods 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000013008 thixotropic agent Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000007767 bonding agent Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 150000001451 organic peroxides Chemical group 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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Abstract
The utility model provides a nonmetallic material-reinforced unsaturated polyester resin inspection well lid. The bottom layer of the well lid is a glass fiber cloth precast slab layer (5); and a resin concrete layer (3), a short glass fiber reinforcement layer (2) and a surface layer (1) are arranged in turn from bottom to top. Due to the structure of well lid in the utility model, the strength and bearing capacity of the well lid are much greater than those of a cast iron or cement concrete well lid of a common structure; and particularly, the glass fiber cloth layer is adopted instead of a reinforcement framework and mainly used on the bottom part or on the bottom part and the middle part at the same time, so the compressive strength is higher than that of steel. The general shortcomings of the inspection well lid products on the market are overcome; the well lid provided by the utility model has the advantages of high strength, steal prevention, difficult crushing, waterproof effect, acid and alkali resistance, aging resistance and the like, and can be widely applied to the underground pipelines of the industries such as communications, municipal administration, water, electricity, natural gas, rain/sewage separation and petrochemical industry.
Description
Technical Field
The utility model belongs to the material field relates to an unsaturated polyester resin inspection well lid of non-metallic material reinforcing, concretely relates to make underground pipe network system inspection well lid with unsaturated polyester resin concrete, is a wide application in the inspection well lid of the underground pipeline of trades such as communication, municipal administration, water, electricity, natural gas, distribution of rain and sewage, petrochemical.
Background
At present, the manhole covers of underground pipelines used in the industries of communication, municipal administration, water, electricity, natural gas, distribution of rain and sewage, petrochemical industry and the like are easy to break cement and steal cast iron, a molded built-in steel reinforcement framework is coated by resin, the resin consumption is large, the input cost is too high, and after retrieval, the manhole covers also contain steel fibers, regenerated resin and polymer base, and the strength of the products is not satisfactory.
The utility model discloses unsaturated polyester resin concrete manhole cover is with unsaturated polyester resin (polymer resin) as the main raw and other materials and the novel combined material goods that the filler condenses into, and the weak point of product on the present market has been overcome to this product, possess intensity height, prevent stealing, waterproof, acid and alkali resistant, advantage such as ageing resistance.
Disclosure of Invention
The utility model aims at providing an unsaturated polyester resin inspection well lid of non-metallic material reinforcing and manufacturing method thereof, the utility model discloses the well lid main raw and other materials adopts unsaturated polyester resin and filler material to mix to condense and make, forms long chain type chemical molecule network structure between the filler. Because the filler is used, the rigidity of the resin concrete is improved, the acid and alkali resistance, the wear resistance and the ultraviolet resistance of the resin concrete are enhanced, and the service life of the resin concrete is prolonged. It contains no water and has no hydration. Because the molecular structure is stable, the paint can not be brittle or damaged even in extremely severe natural environment, can not release harmful substances under the influence of environmental factors, has no chemical residues, and can not cause any pollution to the environment.
The purpose of the utility model is realized through following measures:
the non-metallic material reinforced unsaturated polyester resin manhole cover comprises a surface layer and is characterized in that the bottommost layer of the manhole cover is a glass fiber cloth prefabricated plate layer, and a resin concrete layer, a short glass fiber reinforced layer and the surface layer are sequentially arranged from bottom to top.
The resin concrete layer and the glass fiber cloth prefabricated plate layer can be sequentially arranged below the glass fiber cloth prefabricated plate layer. And a binder layer with the thickness of 0.1-0.5mm is arranged between the glass fiber cloth prefabricated plate layer and the resin concrete layer.
The glass fiber cloth prefabricated plate layer is prepared by the following steps: taking 90-96 parts by weight of unsaturated polyester resin, 5-15 parts by weight of calcium carbonate, 0.5-2 parts by weight of curing agent and 0.2-1 part by weight of accelerator, and uniformly mixing to prepare slurry; cutting glass fiber cloth according to the size of the well cover, coating the slurry on the glass fiber cloth to form a glass fiber cloth plate, and curing at the coating temperature of 20-30 ℃ for 10-60 minutes.
The glass fiber cloth prefabricated plate layer is prepared by the following steps: taking 96 parts by weight of unsaturated polyester resin, 10 parts by weight of calcium carbonate, 1 part by weight of curing agent and 0.5 part by weight of accelerator, and uniformly mixing to prepare slurry; cutting glass fiber cloth according to the size of the well cover, coating the slurry on the glass fiber cloth to form a glass fiber cloth layer, and curing at the coating temperature of 20-30 ℃ for 10-60 minutes.
The formula of the surface layer is as follows: 70-90 parts of unsaturated polyester resin, 20-30 parts of calcium carbonate, 0.5-2 parts of curing agent, 1-2 parts of thixotropic agent and 0.2-1 part of accelerator;
the formula of the short glass fiber reinforced layer comprises the following components: 80-90 parts of unsaturated polyester resin, 5-15 parts of calcium carbonate, 0.5-2 parts of curing agent, 0.3-8 parts of short glass fiber and 0.2-1 part of accelerator;
the formula of the resin concrete layer is as follows: taking 8-15 parts of unsaturated polyester resin, 40-50 parts of stones, 15-25 parts of sands, 12-25 parts of calcium carbonate, 0.08-0.18 part of curing agent and 0.04-0.1 part of accelerator.
The preferable formula of the surface layer is as follows: uniformly mixing 90 parts by weight of unsaturated polyester resin, 20 parts by weight of calcium carbonate, 1 part by weight of curing agent, 1.5 parts by weight of thixotropic agent and 0.5 part by weight of accelerator;
the preferable formula of the short glass fiber reinforced layer is as follows: uniformly mixing 80 parts by weight of unsaturated polyester resin, 10 parts by weight of calcium carbonate, 1 part by weight of curing agent, 1 part by weight of short glass fiber and 0.5 part by weight of accelerator;
the preferable formula of the resin concrete layer is as follows: uniformly mixing 12 parts by weight of unsaturated polyester resin, 48 parts by weight of stones, 16 parts by weight of sand, 20 parts by weight of calcium carbonate, 0.1 part by weight of curing agent and 0.05 part by weight of accelerator.
The formula of the used binder is as follows: 70-90 parts of unsaturated polyester resin, 20-30 parts of calcium carbonate, 0.5-2 parts of curing agent and 0.2-1 part of accelerator.
The unsaturated polyester resin is ortho-benzene type or para-benzene type unsaturated polyester resin, preferably ortho-benzene type or para-benzene type mould pressing unsaturated polyester resin, and most preferably para-benzene type mould pressing unsaturated polyester resin. The properties of the preferred ortho-or para-benzene molded unsaturated polyester resin are: viscosity: 400-650mpa.s, solids content: 60% -68%, and the gel time at 25 ℃ is 8-14 mins.
The stones are one or a mixture of more of 10-20mm cobbles, basalt or limestone; the sand is one or a mixture of two of river sand or silica sand with the particle size of 2.5-5.0 mm.
The calcium carbonate is preferably heavy calcium carbonate, the particle size is 200-400 meshes, and the Mohs hardness is 3-5.
The curing agent is organic peroxide, preferably methyl ethyl ketone peroxide; the promoter is unsaturated resin promoter with cobalt content of 0.4-10%, preferably cobalt isooctanoate.
The glass fiber cloth is preferably alkali-free glass fiber cloth, and the preferable properties are as follows: combustible content: 0.4-0.8%, water content less than 0.2%, warp and weft density: 4.0 +/-10% of alkali-free glass fiber cloth.
The thixotropic agent is a thixotropic agent SQ-20, the short glass fiber yarns are alkali-free short glass fiber yarns, and the length of the alkali-free short glass fiber yarns is preferably 0.3-1 cm.
The thickness of the surface layer 1 is 0.2-2mm, the thickness of the resin concrete layers 3 and 7 is 20-55mm, and the thickness of the short glass fiber reinforced layer 2 is 0.2-2 mm.
The preparation method of the non-metallic material reinforced unsaturated polyester resin manhole cover comprises the following steps:
coating a release agent on the surface of a mould, then sequentially coating a surface layer, a short glass fiber reinforced layer and a resin concrete layer, vibrating the mould while coating, stopping vibration after coating is finished, coating a glass fiber cloth prefabricated plate layer on the resin concrete layer, curing, demoulding and shaping; the glass fiber cloth prefabricated plate layer is bonded on the resin concrete layer through a bonding agent, and is pressed for 0.5-3 hours through a heavy object during bonding; the curing temperature is 10-40 ℃, and the setting time is 20 minutes.
The preparation method of the non-metal material reinforced unsaturated polyester resin manhole cover can also comprise the following steps:
after a mold release agent is coated on the surface of the mold, a surface layer, a short glass fiber reinforced layer and a resin concrete layer are sequentially coated, the mold is vibrated while coating is finished, after the coating is finished, the vibration is stopped, a glass fiber cloth prefabricated plate layer is coated on the resin concrete layer, the glass fiber cloth prefabricated plate layer is arranged after the resin concrete layer is coated on the glass fiber cloth prefabricated plate layer, and the mold is shaped after curing and demolding; the glass fiber cloth prefabricated plate layer is bonded on the resin concrete layer through a bonding agent layer, and is pressed for 0.5-3 hours through a heavy object during bonding; the curing temperature is 10-40 ℃, and the setting time is 20 minutes. The well lid manufactured by the utility model can be manufactured into various shapes and sizes such as round or square, the thickness is preferably 4-7cm, and the diameter of the round is preferably phi 200-1200.
Each layer of glass fiber cloth prefabricated plate layer contains one or more layers of glass fiber cloth. When the glass fiber cloth precast slab is manufactured, the number of layers of the glass fiber cloth in the glass fiber cloth precast slab can be determined according to the strength requirement of the inspection well cover; the sizing agent is coated and scraped on the glass fiber cloth layer by layer to form a glass fiber cloth prefabricated plate layer with single-layer or multi-layer glass fiber cloth, namely sizing, cloth laying, sizing, cloth laying and the like, the glass fiber cloth is coated and scraped layer by layer (the coating amount of the sizing agent is based on the soaking of the glass fiber cloth), and the more the glass fiber cloth layers, the higher the tensile strength of the material. Usually, 1-10 layers of glass fiber cloth are laid on each prefabricated plate, and the thickness of the prefabricated plate is usually 0.5-4 mm.
Compared with the prior art, the utility model has the advantages that: the utility model discloses adopt glass fiber cloth to make manhole cover bulk strength improve by a wide margin in the preparation method of material, about every increase one deck glass fiber cloth multiplicable bearing capacity 2 tons. The prefabricated sheet layer of glass fiber cloth can replace steel reinforcement framework, mainly uses simultaneously in well lid bottom or bottom and centre, and compressive strength is still higher than steel. For example: by adopting the glass fiber cloth precast slabs with 3 layers of glass fiber cloth arranged in the middle and 6 layers of glass fiber cloth arranged at the bottom, the obtained well cover can bear 40 tons, and the maximum weight of the existing reinforcing steel bar is only about 36 tons. The utility model discloses still increase wear-resisting, the shock resistance on top layer through adding an amount of short glass fiber silk layer, make surperficial life greatly increased. In addition, the utility model can also be added with color paste to make the surface have various colors.
Drawings
FIG. 1 is the profile schematic view of the manhole cover of the present invention 1
FIG. 2 is the profile of the manhole cover of the utility model is shown in FIG. 2
Fig. 3 is the whole view of the whole set of inspection well cover of the utility model.
In the figure, 1 is the surface course, 2 is short glass fiber enhancement layer, 3 is resin concrete layer, 4 is the binder layer, 5 is glass fiber cloth prefabricated sheet layer, 6 is glass fiber cloth prefabricated sheet layer, 7 is manhole cover of inspection shaft lid, 8 is inspection shaft lid's well seat.
Detailed Description
The invention is further illustrated by the following examples, in which each part by weight represents 1 kg. :
the physical and chemical properties of the adopted raw materials are as follows:
1. p-benzene type or o-benzene type molding unsaturated polyester resin: viscosity (25 ℃): 400-650mpa.s, solids content: 60% -68%, and the gel time at 25 ℃ is 8-14 mins.
2. Coarse aggregate pebbles (mixture of cobbles, basalt and limestone): granularity: 10-13mm, specific gravity not less than 2.55g/cm3The water absorption is less than 3.0 percent.
3. Fine aggregate sand (mixture of river sand and silica sand): the granularity is 2.5-5.0mm, and the specific gravity is more than or equal to 2.55g/cm3The water absorption is less than 3.0 percent, and the water content is less than 0.3 percent.
4. Calcium carbonate: ground calcium carbonate, particle size: 200 meshes, the content of calcium carbonate is more than or equal to 97 percent, and the Mohs hardness is as follows: 3.
5. accelerator (b): chemical name: cobalt iso-octoate. Appearance: magenta liquid, active oxygen content: 5-10%, specific gravity: 0.96 +/-0.02 g/cm3
6. Curing agent: chemical name: methyl ethyl ketone peroxide. Appearance: colorless or pale yellow, active oxygen content: 9.8-10%, specific gravity: 1.17 +/-0.02 g/cm3
7. Glass fiber cloth (alkali-free): combustible content: 0.4-0.8%, water content: water content: less than 0.2%, warp and weft density: 4.0 ± 10% roots/cm, weft 3.0 ± 10% roots/cm, weight per unit area: 330. + -. 8.0% roots/cm, broad: 90 ± 1.0cm, length: 50m or 60 m.
8. Thixotropic agent: QS-20 De shan chemical (Zhejiang) Co., Ltd.
9. Glass fiber yarn (alkali-free): the length is 0.3-1cm (produced by Longitude and Longitude glass fiber factories of Yuyao city).
Example 1
The utility model provides a non-metallic material reinforced unsaturated polyester resin inspection well lid, the bottom layer of this well lid is glass fiber cloth prefabricated plate layer 5, sets gradually resin concrete layer 3, short glass fiber enhancement layer 2 and surface course 1 from lower to upper. And a binder layer 4 with the thickness of 0.1-0.5mm is arranged between the glass fiber cloth prefabricated plate layer 5 and the resin concrete layer 3. The thickness of the surface layer 1 is 0.2-2mm, the thickness of the resin concrete layer 3 is 50-55mm, and the thickness of the short glass fiber reinforced layer 2 is 0.2-2mm, as shown in figure 1.
The preparation method comprises the following steps:
place prepared mould on the shaking table and confirm fixed with the fixed pin behind the position of drain hole, after the conventional release agent of mould surface coating, coat surface course 1 in proper order, short glass fiber reinforcement layer 2 and resin concrete layer 3, the mould vibrates in the coating, after the coating, stop the vibration, apply glass fiber cloth prefabricated plate layer 5 (containing 2 layers of glass fiber cloth) on resin concrete layer 3, the design frame is stereotyped after the health preserving drawing of patterns, the design time is 20 minutes, the health preserving temperature: the water-soluble organic fertilizer can be normally used after 7 days at the temperature of 10-40 ℃. Wherein,
a) preparation of the facing layer 1: uniformly mixing 70 parts by weight of unsaturated polyester resin, 30 parts by weight of calcium carbonate, 1.5 parts by weight of curing agent, 2 parts by weight of thixotropic agent and 1 part by weight of accelerator;
b) preparation of short glass fiber reinforcement layer 2: uniformly mixing 90 parts by weight of unsaturated polyester resin, 15 parts by weight of calcium carbonate, 1.5 parts by weight of curing agent, 8 parts by weight of short glass fiber and 1 part by weight of accelerator;
c) preparation of resin concrete layer 3: taking 14 parts by weight of unsaturated polyester resin, 50 parts by weight of stones, 18 parts by weight of sand, 22 parts by weight of calcium carbonate, 0.18 part by weight of curing agent and 0.1 part by weight of accelerator, and uniformly mixing at the temperature of 23 ℃;
d) preparing a glass fiber cloth prefabricated plate layer: taking 90 parts by weight of unsaturated polyester resin, 15 parts by weight of calcium carbonate, 1.5 parts by weight of curing agent and 1 part by weight of accelerator, and uniformly mixing to prepare slurry; cutting glass fiber cloth according to the size of the well cover, coating the slurry on the glass fiber cloth layer by layer to form a glass fiber cloth prefabricated plate layer, and curing at the coating temperature of 20-30 ℃ for 10-60 minutes.
Bonding the glass fiber cloth prefabricated plate layer 5 on a resin concrete layer 3 through a bonding agent layer 4, and pressing a heavy object for 0.5-3 hours; the preparation method of the adhesive layer 4 comprises the following steps: 70 parts of unsaturated polyester resin, 30 parts of calcium carbonate, 1.5 parts of curing agent and 1 part of accelerator are mixed for 1-3 min.
The unsaturated polyester resin adopted in the embodiment is an o-type molding unsaturated polyester resin (specific gravity: 1.10 +/-0.02 g/cm) produced by Nanjing Yongxiang chemical Limited company3Viscosity (25 ℃): 400-650mpa.s, acid value: 20-30, solid content: 60% -68%, gel time (25 ℃): spring and autumn (10-13mins) summer (11-14mins) and winter (8-11 mins). ).
According to the utility model discloses the performance index of the resin concrete layer that embodiment 1 method was made and traditional cement concrete layer contrast is shown as table 1:
TABLE 1
Traditional cement inspection well lid and prepare according to embodiment 1 method and obtain the utility model discloses shaping inspection well lid bearing capacity performance contrast table 2:
TABLE 2
Example 2
The utility model provides a non-metallic material reinforced unsaturated polyester resin inspection well lid, this well lid's bottom is glass fiber cloth prefabricated sheet layer 6 (containing 6 layers of glass fiber cloth), sets gradually resin concrete layer 3, glass fiber cloth prefabricated sheet layer 5 (containing 3 layers of glass fiber cloth), resin concrete layer 3, short glass fiber enhancement layer 2 and surface course 1 from lower supreme. A binder layer 4 with the thickness of 0.1-0.5mm is arranged between the glass fiber cloth prefabricated plate layer 5 or 6 and the resin concrete layer 3. The thickness of the surface layer 1 is 0.2-2mm, the thickness of the resin concrete layer 3 is 20-30mm, and the thickness of the short glass fiber reinforced layer 2 is 0.2-2 mm. As shown in fig. 2.
Place prepared mould on the shaking table and confirm with the discharge hole after the position fixed with the fixed pin, after the mould surface coating release agent, coat surface course 1 in proper order, short glass fiber enhancement layer 2 and resin concrete layer 3, the mould vibrates in the coating simultaneously, after the coating, stop the vibration, apply glass fiber cloth prefabricated sheet layer 5 (containing 3 layers of glass fiber cloth) on resin concrete layer 3, again coat one deck resin concrete layer 3 back on glass fiber cloth prefabricated sheet layer 5, add one deck glass fiber cloth prefabricated sheet layer 6 (containing 6 layers of glass fiber cloth), the design frame is stereotyped after the health preserving drawing of patterns, the design time is 20 minutes, the health preserving temperature: the water-soluble organic fertilizer can be normally used after 7 days at the temperature of 10-40 ℃. Wherein,
a) preparation of the facing layer 1: uniformly mixing 90 parts by weight of unsaturated polyester resin, 20 parts by weight of calcium carbonate, 1 part by weight of curing agent, 1.5 parts by weight of thixotropic agent and 0.5 part by weight of accelerator;
b) preparation of short glass fiber reinforcement layer 2: uniformly mixing 80 parts by weight of unsaturated polyester resin, 10 parts by weight of calcium carbonate, 1 part by weight of curing agent, 1 part by weight of short glass fiber and 0.5 part by weight of accelerator;
c) preparation of resin concrete layer 3: uniformly mixing 12 parts by weight of unsaturated polyester resin, 48 parts by weight of stones, 16 parts by weight of sand, 20 parts by weight of calcium carbonate, 0.1 part by weight of curing agent and 0.05 part by weight of accelerator at 23 ℃;
d) preparing a glass fiber cloth prefabricated plate layer: taking 96 parts by weight of unsaturated polyester resin, 10 parts by weight of calcium carbonate, 1 part by weight of curing agent and 0.5 part by weight of accelerator, and uniformly mixing to prepare slurry; cutting glass fiber cloth according to the size of the well cover, coating and scraping the slurry on the multiple layers of glass fiber cloth layer by layer to form a glass fiber cloth prefabricated plate layer, and curing at the coating and scraping temperature of 20-30 ℃ for 10-60 minutes.
Bonding the glass fiber cloth prefabricated plate layer 5 and the glass fiber cloth prefabricated plate layer 6 on the resin concrete layer 3 through the adhesive layer 4, and pressing the heavy object for 0.5-3 hours; the preparation method of the adhesive layer 4 comprises the following steps: mixing 90 parts by weight of unsaturated polyester resin, 20 parts by weight of calcium carbonate, 1 part by weight of curing agent and 0.5 part by weight of accelerator for 1-3 min.
The unsaturated polyester resin used in this example was a p-benzene type molded unsaturated polyester resin (196 type, produced by the Changzhou east wind resin works)
The properties of the resin concrete layer of this example were the same as those of example 1.
Traditional cement well lid and obtain according to embodiment 2 method preparation the utility model discloses the contrast of shaping inspection well lid bearing capacity performance is seen in table 3:
table 3:
example 3
The structure and the preparation method of the nonmetal material reinforced unsaturated polyester resin manhole cover are the same as those of the embodiment 1; wherein, the glass fiber cloth prefabricated plate layer 5 comprises 4 layers of glass fiber cloth. The properties of the resin concrete layer in this example were the same as those in example 1.
Traditional cement well lid and prepare according to embodiment 3 method and obtain the utility model discloses shaping inspection well lid bearing capacity performance contrast sees table 4:
TABLE 4
Example 4
The structure and the preparation method of the nonmetal material reinforced unsaturated polyester resin manhole cover are the same as those of the embodiment 2; wherein, glass fiber cloth prefabricated plate layer 5 contains 3 layers of glass fiber cloth, and glass fiber cloth prefabricated plate layer 6 contains 4 layers of glass fiber cloth.
Traditional cement well lid and obtain according to embodiment 4 method preparation the utility model discloses shaping inspection well lid bearing capacity performance contrast sees table 5:
TABLE 5
The thickness of the well cover is about 6 cm.
Claims (9)
1. The utility model provides a non-metallic material reinforced unsaturated polyester resin inspection well lid, includes surface course (1), and its characterized in that this inspection well lid's bottom layer is glass fiber cloth prefabricated sheet layer (5), sets gradually resin concrete layer (3), short glass fiber enhancement layer (2) and surface course (1) again from lower to upper.
2. The unsaturated polyester resin manhole cover reinforced by non-metallic materials according to claim 1, wherein a resin concrete layer (3) and a glass cloth precast slab layer (6) are sequentially disposed under the glass cloth precast slab layer (5).
3. Unsaturated polyester resin concrete manhole cover reinforced with non-metallic materials according to claim 1 or 2, characterized in that a binder layer (4) is provided between the glass fiber cloth precast slabs (5, 6) and the resin concrete layer (3).
4. Manhole cover according to claim 3, wherein the adhesive layer (4) has a thickness of 0.1-0.5 mm.
5. Manhole cover according to claim 1 or 2, wherein the resin concrete layer (3) is 20-55mm thick.
6. Manhole cover according to claim 1 or 2, wherein the glass fiber cloth precast slab layer (5) and the glass fiber cloth precast slab layer (6) are respectively 0.5-4mm thick.
7. Manhole cover according to claim 1 or 2, wherein the facing (1) has a thickness of 0.2-2 mm.
8. Manhole cover according to claim 1 or 2, wherein the short glass fibre reinforcement layer (2) has a thickness of 0.2-2 mm.
9. The manhole cover according to claim 1 or 2, wherein the glass fiber cloth precast slab layer (5) or the glass fiber cloth precast slab layer (6) comprises 1 or more layers of glass fiber cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202853966U CN201817820U (en) | 2010-08-09 | 2010-08-09 | Nonmetallic material-reinforced unsaturated polyester resin inspection well lid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202853966U CN201817820U (en) | 2010-08-09 | 2010-08-09 | Nonmetallic material-reinforced unsaturated polyester resin inspection well lid |
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| Publication Number | Publication Date |
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| CN201817820U true CN201817820U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202853966U Expired - Lifetime CN201817820U (en) | 2010-08-09 | 2010-08-09 | Nonmetallic material-reinforced unsaturated polyester resin inspection well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201817820U (en) |
-
2010
- 2010-08-09 CN CN2010202853966U patent/CN201817820U/en not_active Expired - Lifetime
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