CN114751698A - Premixed mortar for green building construction - Google Patents
Premixed mortar for green building construction Download PDFInfo
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- CN114751698A CN114751698A CN202210465129.4A CN202210465129A CN114751698A CN 114751698 A CN114751698 A CN 114751698A CN 202210465129 A CN202210465129 A CN 202210465129A CN 114751698 A CN114751698 A CN 114751698A
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- fiber reinforced
- mixed mortar
- building construction
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 48
- 238000009435 building construction Methods 0.000 title claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 52
- 239000002699 waste material Substances 0.000 claims abstract description 36
- 239000011152 fibreglass Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 20
- 239000011358 absorbing material Substances 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000003733 fiber-reinforced composite Substances 0.000 claims abstract description 15
- 241000196324 Embryophyta Species 0.000 claims description 21
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 18
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 18
- 241001330002 Bambuseae Species 0.000 claims description 18
- 235000011777 Corchorus aestuans Nutrition 0.000 claims description 18
- 240000000491 Corchorus aestuans Species 0.000 claims description 18
- 235000010862 Corchorus capsularis Nutrition 0.000 claims description 18
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 18
- 239000011425 bamboo Substances 0.000 claims description 18
- 240000000111 Saccharum officinarum Species 0.000 claims description 15
- 235000007201 Saccharum officinarum Nutrition 0.000 claims description 15
- 239000010902 straw Substances 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 13
- 235000010344 sodium nitrate Nutrition 0.000 claims description 10
- 239000004317 sodium nitrate Substances 0.000 claims description 10
- 210000002268 wool Anatomy 0.000 claims description 10
- 239000004113 Sepiolite Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 229910052624 sepiolite Inorganic materials 0.000 claims description 8
- 235000019355 sepiolite Nutrition 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 241000609240 Ambelania acida Species 0.000 claims description 3
- 239000010905 bagasse Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical group O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 16
- 239000004568 cement Substances 0.000 abstract description 13
- 239000000047 product Substances 0.000 abstract description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 abstract description 7
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 abstract description 7
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 abstract description 7
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011398 Portland cement Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000004566 building material Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a ready-mixed mortar for green building construction, which comprises the following components in parts by weight: 90-110 parts of Portland cement, 15-25 parts of granulated blast furnace slag, 20-30 parts of a plant fiber reinforced composite material, 15-25 parts of waste glass fiber reinforced plastic, 55-70 parts of a slow-release heat absorbing material, 4-8 parts of hydroxypropyl methyl cellulose ether, 0.5-2 parts of a water reducing agent and 90-110 parts of water. The granulated blast furnace slag and the waste glass fiber reinforced plastic used in the invention are used for recycling waste materials, so that the waste building garbage and the slag are effectively changed into valuable, the environment is protected, and the cost is reduced; by adding the plant fiber reinforced composite material, the toughness of the plant fiber is fully utilized, crack expansion is reduced, the mechanical property is improved, the material is easy to obtain, the manufacturing is simple, the construction is convenient, and the cost is low. Through the matching of the raw materials, the cement product has better mechanical strength performance and is not easy to crack.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to ready-mixed mortar for green building construction.
Background
In recent years, some large cities in China have started to push ready-mixed mortar, the production and use of the ready-mixed mortar meet the development requirements of the social of circular economy and resource conservation, the industrial production is realized, the stability of quality is ensured from the source, and the method has the advantages of good operability, little field pollution, effective improvement of engineering progress and the like.
The strength and the construction performance of the currently used ready-mixed mortar are insufficient, and the ready-mixed mortar only can meet the requirements of site construction; the quality of the ready-mixed mortar is reduced due to uneven stirring and mixing, and the ready-mixed mortar can be dried and shrunk, so that the problems of cracking and the like are caused. Meanwhile, with the use of a large amount of mortar, the demand for raw materials is also very huge, and therefore, new breakthroughs and improvements in the aspects of sustainable development, environmental protection, resource use and the like need to be found.
The waste glass fiber reinforced plastics can be generally classified into two types of industrial waste and general waste. The industrial waste glass fiber reinforced plastics are mainly from relatively pure leftover bits, scraps and waste products generated in the forming process and the production process. The general waste is mainly waste products which lose functions in the service life and are accidentally damaged in the transportation and building material using processes before the service life. The glass fiber reinforced plastic has the characteristics of high strength, good corrosion resistance and the like, so that the waste glass fiber reinforced plastic is difficult to recover.
Blast furnace slag is a by-product in a blast furnace iron making process. In the iron-making process, iron oxide is reduced into metallic iron, impurities in iron ore such as silicon dioxide, aluminum oxide and the like react with lime and the like to generate a melt which takes silicate and aluminosilicate as main components, and the melt is quenched into loose and porous granules, namely granulated blast furnace slag.
In addition, plant resources in China are quite rich, and jute, bamboo and sugarcane are all rich in a large amount of plant fibers as economic crops.
At present, no literature report on the improved use of the combination of waste glass fiber reinforced plastics, blast furnace slag and plant fibers applied to the ready-mixed mortar is found.
Disclosure of Invention
The invention aims to provide the premixed mortar for green building construction, and solves the problem that the premixed mortar in the prior art is urgently needed to develop new green, environment-friendly and sustainable raw materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a ready-mixed mortar for green building construction, which comprises the following components in parts by weight:
preferably, the ready-mixed mortar comprises the following components in parts by weight:
further, the particle size of the granulated blast furnace slag is 1-4.75 mm.
Further, the plant fiber reinforced composite material is prepared by mixing the following components in a weight ratio of 3: 2: 5 jute fiber, bamboo fiber and sugarcane straw fiber. By adding the special plant fiber reinforced composite material, the cement product prepared from the ready-mixed mortar has the characteristics of light weight, heat insulation, heat preservation, sound insulation and the like, and has the advantages of easily obtained materials, simple manufacture, convenient construction and low cost. In addition, as plant fibers, jute fibers, bamboo fibers and sugarcane straw fibers have good toughness, are in a three-dimensional disorderly distributed net structure in the ready-mixed mortar, play a role in supporting, can reduce crack expansion and improve mechanical properties.
Further, the jute fiber, bamboo fiber and sugarcane straw fiber are chopped plant fiber obtained by respectively squeezing, dewatering, shearing and crushing corresponding jute, bamboo and bagasse.
Further, the length of the jute fiber is 8-15 mm; the length of the bamboo fiber is 5-10 mm; the length of the sugarcane straw fiber is 1-5 mm.
Further, the waste glass fiber reinforced plastic is obtained by crushing phenolic glass fiber reinforced plastic, and the length of the waste glass fiber reinforced plastic is 1.5-2.5 mm.
Further, the preparation method of the slow-release heat absorption material comprises the following steps: according to the weight ratio of 1: 1.3: 0.5 mixing and stirring the sodium nitrate, the sepiolite and the water glass uniformly to obtain a wool, sintering the wool in a sintering furnace at 300 ℃ for 2 hours, and crushing by using a crusher to obtain the slow-release heat absorbing material. The sodium nitrate is dissolved in the water glass and then absorbed by the porous sepiolite, and water molecules are lost after sintering, so that the sodium nitrate is locked in the holes of the sepiolite, and the subsequent sustained-release heat-absorbing material can continuously absorb heat when absorbing water.
Furthermore, the particle size of the slow-release heat absorption material is 0.3-0.4 mm.
Further, the water reducing agent is a naphthalene water reducing agent.
The preparation method of the ready-mixed mortar for green building construction comprises the following steps: weighing the raw materials according to the proportion, adding the raw materials into a stirrer, and uniformly stirring to obtain the product.
Compared with the prior art, the invention provides the premixed mortar for green building construction, which has the following beneficial effects:
(1) the addition of the granulated blast furnace slag can improve the fluidity, reduce the hydration heat of the cement, improve the internal structure of the cement and further increase the strength of the ready-mixed mortar by utilizing the porous and loose structure of the granulated blast furnace slag.
(2) The plant fiber reinforced composite material is applied to the raw materials of the ready-mixed mortar, can be better dispersed in gaps in the cement, improves the bonding property with the cement, and improves the breaking strength of the cement.
(3) After the waste glass fiber reinforced plastic fibers are doped, more gel materials can be wrapped, the combination is tighter, and the bonding performance of the mortar can be enhanced; the use of the waste glass fiber reinforced plastic fiber solves the major problem that the waste glass fiber reinforced plastic is difficult to be recycled at present, and has positive use significance for fully exerting the advantages of the waste glass fiber reinforced plastic in building materials, improving the quality and durability of mortar engineering and the like.
(4) According to the invention, by adding the slow-release heat-absorbing material, the prepared cement product can gradually and slowly release sodium nitrate during curing, and the sodium nitrate can absorb heat when dissolved in water, so that the internal temperature of the cement product during curing can be reduced, and the cement product is not easy to crack.
(5) The hydroxypropyl methyl cellulose ether has high water-retaining property, can fully hydrate cement, enhances the bonding strength among raw materials, and further enhances the strength of mortar; in addition, the hydroxypropyl methyl cellulose ether can reduce the phenomena of cracks and dehydration of the cement caused by too fast dehydration, has good fluidity and can enhance the crack resistance of the mortar.
(5) The granulated blast furnace slag and the waste glass fiber reinforced plastic used in the invention are used for recycling waste materials, so that the waste building garbage and the slag are effectively changed into valuable, the environment is protected, and the cost is reduced; by adding the plant fiber reinforced composite material, the toughness of the jute fiber, the bamboo fiber and the sugarcane straw fiber is fully utilized, crack expansion is reduced, the mechanical property is improved, the materials are easily obtained, the manufacturing is simple, the construction is convenient, and the cost is low. Through scientific matching of the raw materials, the cement product has better mechanical strength performance and is not easy to crack.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be understood 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.
The invention provides premixed mortar for green building construction, which comprises the following components in parts by weight:
wherein the portland cement is ordinary 42.5# strength portland cement.
The grain size of the granulated blast furnace slag is 1-4.75 mm.
The plant fiber reinforced composite material is prepared from the following components in parts by weight of 3: 2: 5 jute fiber, bamboo fiber and sugarcane straw fiber. The jute fiber, bamboo fiber and sugarcane straw fiber are chopped plant fiber obtained by squeezing, dewatering, shearing and crushing corresponding jute, bamboo and bagasse. The length of the jute fiber is 8-15 mm, the length of the bamboo fiber is 5-10 mm, and the length of the sugarcane straw fiber is 1-5 mm.
The waste glass fiber reinforced plastic is obtained by crushing phenolic glass fiber reinforced plastic, and the length of the waste glass fiber reinforced plastic is 1.5-2.5 mm.
The water reducing agent is specifically a YZ-1 naphthalene high-efficiency water reducing agent of Zhuoyu building materials.
The preparation method of the slow-release heat-absorbing material comprises the following steps: according to the weight ratio of 1: 1.3: 0.5 mixing and stirring sodium nitrate, sepiolite and water glass uniformly to obtain a wool, sintering the wool in a sintering furnace at 300 ℃ for 2 hours, and crushing by using a crusher to obtain the slow-release heat absorbing material with the particle size of 0.3-0.4 mm.
The preparation method of the ready-mixed mortar comprises the following steps: weighing the raw materials according to the proportion, and then sequentially adding the raw materials into a stirrer to be uniformly stirred to obtain the product.
The present invention is described in further detail below by means of detailed examples.
The raw materials used in the following examples are all commercially available.
Example 1
The embodiment provides a ready-mixed mortar for green building construction, which comprises the following components in parts by mass:
wherein the grain size of the granulated blast furnace slag is 1-4.75 mm. The plant fiber reinforced composite material is prepared from the following components in parts by weight of 3: 2: 5, the jute fibers are 8-15 mm in length, the bamboo fibers are 5-10 mm in length, and the sugarcane straw fibers are 1-5 mm in length. The waste glass fiber reinforced plastic is obtained by crushing phenolic glass fiber reinforced plastic, and the length of the waste glass fiber reinforced plastic is 1.5-2.5 mm. The water reducing agent is specifically a YZ-1 naphthalene high-efficiency water reducing agent of Zhuoyu building materials.
The preparation method of the slow-release heat-absorbing material comprises the following steps: according to the weight ratio of 1: 1.3: 0.5 mixing and stirring sodium nitrate, sepiolite and water glass uniformly to obtain a wool, sintering the wool in a sintering furnace at 300 ℃ for 2 hours, and crushing by using a crusher to obtain the slow-release heat absorbing material with the particle size of 0.3-0.4 mm.
Preparing ready-mixed mortar: weighing 100kg of portland cement, 20kg of granulated blast furnace slag, 25kg of plant fiber reinforced composite material, 20kg of waste glass fiber reinforced plastic, 65kg of slow-release heat absorbing material, 5kg of hydroxypropyl methyl cellulose ether, 1kg of water reducing agent and 100kg of water according to the proportion, and then adding the raw materials into a stirrer to be uniformly stirred to obtain the composite material.
Example 2
The embodiment provides a ready-mixed mortar for green building construction, which comprises the following components in parts by mass:
wherein the grain size of the granulated blast furnace slag is 1-4.75 mm. The plant fiber reinforced composite material is prepared from the following components in parts by weight of 3: 2: 5, the jute fibers are 8-15 mm in length, the bamboo fibers are 5-10 mm in length, and the sugarcane straw fibers are 1-5 mm in length. The waste glass fiber reinforced plastic is obtained by crushing phenolic glass fiber reinforced plastic, and the length of the waste glass fiber reinforced plastic is 1.5-2.5 mm. The water reducing agent is specifically a YZ-1 naphthalene high-efficiency water reducing agent of Zhuoyu building materials.
The preparation method of the slow-release heat-absorbing material comprises the following steps: according to the weight ratio of 1: 1.3: 0.5 mixing and stirring sodium nitrate, sepiolite and water glass uniformly to obtain a rough material, sintering the rough material in a sintering furnace at 300 ℃ for 2 hours, and crushing by using a crusher to obtain the slow-release heat absorbing material with the particle size of 0.3-0.4 mm.
Preparing ready-mixed mortar: weighing 110kg of portland cement, 15kg of granulated blast furnace slag, 20kg of plant fiber reinforced composite material, 15kg of waste glass fiber reinforced plastic, 55kg of slow-release heat absorbing material, 8kg of hydroxypropyl methyl cellulose ether, 0.5kg of water reducing agent and 90kg of water according to the proportion, and then adding the raw materials into a stirrer to be uniformly stirred to obtain the composite material.
Example 3
The embodiment provides a ready-mixed mortar for green building construction, which comprises the following components in parts by mass:
wherein the grain size of the granulated blast furnace slag is 1-4.75 mm. The plant fiber reinforced composite material is prepared from the following components in parts by weight of 3: 2: 5, the jute fibers are 8-15 mm in length, the bamboo fibers are 5-10 mm in length, and the sugarcane straw fibers are 1-5 mm in length. The waste glass fiber reinforced plastic is obtained by crushing phenolic glass fiber reinforced plastic, and the length of the waste glass fiber reinforced plastic is 1.5-2.5 mm. The water reducing agent is specifically a YZ-1 naphthalene high-efficiency water reducing agent for rain-making building materials.
The preparation method of the slow-release heat-absorbing material comprises the following steps: according to the weight ratio of 1: 1.3: 0.5 mixing and stirring sodium nitrate, sepiolite and water glass uniformly to obtain a wool, sintering the wool in a sintering furnace at 300 ℃ for 2 hours, and crushing by using a crusher to obtain the slow-release heat absorbing material with the particle size of 0.3-0.4 mm.
Preparing ready-mixed mortar: weighing 90kg of portland cement, 25kg of granulated blast furnace slag, 30kg of plant fiber reinforced composite material, 25kg of waste glass fiber reinforced plastic, 70kg of slow-release heat absorbing material, 4kg of hydroxypropyl methyl cellulose ether, 2kg of water reducing agent and 110kg of water according to the proportion, and then adding the raw materials into a stirrer to be uniformly stirred to obtain the composite material.
The ready-mixed mortar prepared in the examples 1 to 3 was randomly sampled, and the water retention rate and the compressive strength performance after 28 days were measured according to the requirements of GB/T25181-2010 "ready-mixed mortar", and the results are shown in the following Table 1.
TABLE 1 Properties of the ready-mixed mortars
| Example 1 | Example 2 | Example 3 | |
| Water retention rate | 97.5％ | 95.8％ | 96.4％ |
| Compressive strength after 28 days | 29.2MPa | 26.8MPa | 27.5MPa |
According to the invention, the content ratio of the granulated blast furnace slag, the plant fiber reinforced composite material, the waste glass fiber reinforced plastic fiber and the slow-release heat-absorbing material is scientifically set, and the silicate cement, the hydroxypropyl methyl cellulose ether and the water reducing agent are matched, so that the water retention capacity of the ready-mixed mortar in the using process is effectively improved, the cracking resistance of the ready-mixed mortar is improved, the reutilization of building waste resources and ore refining waste residues is realized, and the plant raw materials are used for replacing part of nonrenewable raw materials, so that the requirements of environmental protection are met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The ready-mixed mortar for green building construction is characterized by comprising the following components in parts by mass:
2. the ready-mixed mortar for green building construction according to claim 1, wherein: the grain size of the granulated blast furnace slag is 1-4.75 mm.
3. The ready-mixed mortar for green building construction according to claim 1, wherein: the plant fiber reinforced composite material is prepared from the following components in parts by weight of 3: 2: 5 jute fiber, bamboo fiber and sugarcane straw fiber.
4. The ready-mixed mortar for green building construction according to claim 3, wherein: the jute fiber, bamboo fiber and sugarcane straw fiber are chopped plant fiber obtained by squeezing, dewatering, shearing and crushing corresponding jute, bamboo and bagasse.
5. The ready-mixed mortar for green building construction according to claim 3, wherein: the length of the jute fiber is 8-15 mm; the length of the bamboo fiber is 5-10 mm; the length of the sugarcane straw fiber is 1-5 mm.
6. The ready-mixed mortar for green building construction according to claim 1, wherein: the waste glass fiber reinforced plastic is obtained by crushing phenolic glass fiber reinforced plastic, and the length of the waste glass fiber reinforced plastic is 1.5-2.5 mm.
7. The ready-mixed mortar for green building construction according to claim 1, wherein: the preparation method of the slow-release heat-absorbing material comprises the following steps: according to the weight ratio of 1: 1.3: 0.5 mixing and stirring the sodium nitrate, the sepiolite and the water glass uniformly to obtain a wool, sintering the wool in a sintering furnace at 300 ℃ for 2 hours, and crushing by using a crusher to obtain the slow-release heat absorbing material.
8. The ready-mixed mortar for green building construction according to claim 1, wherein: the particle size of the slow-release heat-absorbing material is 0.3-0.4 mm.
9. The ready-mixed mortar for green building construction according to claim 1, wherein: the water reducing agent is a naphthalene water reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210465129.4A CN114751698A (en) | 2022-04-25 | 2022-04-25 | Premixed mortar for green building construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210465129.4A CN114751698A (en) | 2022-04-25 | 2022-04-25 | Premixed mortar for green building construction |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585291A (en) * | 2014-10-29 | 2016-05-18 | 西安优信机电工程有限公司 | Environment-friendly fiber concrete doped with montmorillonite and preparation method thereof |
| CN106478019A (en) * | 2016-09-30 | 2017-03-08 | 河北科技大学 | A kind of bonding mortar of utilization cullet Stainless-steel fibre |
| CN109231944A (en) * | 2018-09-27 | 2019-01-18 | 铜陵铜冠建安新型环保建材科技有限公司 | A kind of green building premixing mortar and its green construction method |
| CN112159169A (en) * | 2020-09-09 | 2021-01-01 | 馆陶县晴美环保科技有限公司 | Waterproof mortar and preparation method thereof |
| CN114180897A (en) * | 2021-11-17 | 2022-03-15 | 山东高速工程建设集团有限公司 | Premixed mortar for green building and construction method |
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2022
- 2022-04-25 CN CN202210465129.4A patent/CN114751698A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585291A (en) * | 2014-10-29 | 2016-05-18 | 西安优信机电工程有限公司 | Environment-friendly fiber concrete doped with montmorillonite and preparation method thereof |
| CN106478019A (en) * | 2016-09-30 | 2017-03-08 | 河北科技大学 | A kind of bonding mortar of utilization cullet Stainless-steel fibre |
| CN109231944A (en) * | 2018-09-27 | 2019-01-18 | 铜陵铜冠建安新型环保建材科技有限公司 | A kind of green building premixing mortar and its green construction method |
| CN112159169A (en) * | 2020-09-09 | 2021-01-01 | 馆陶县晴美环保科技有限公司 | Waterproof mortar and preparation method thereof |
| CN114180897A (en) * | 2021-11-17 | 2022-03-15 | 山东高速工程建设集团有限公司 | Premixed mortar for green building and construction method |
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