CN115838268A - Heat-storage heat-preservation modified cement and preparation method thereof - Google Patents
Heat-storage heat-preservation modified cement and preparation method thereof Download PDFInfo
- Publication number
- CN115838268A CN115838268A CN202211608939.7A CN202211608939A CN115838268A CN 115838268 A CN115838268 A CN 115838268A CN 202211608939 A CN202211608939 A CN 202211608939A CN 115838268 A CN115838268 A CN 115838268A
- Authority
- CN
- China
- Prior art keywords
- heat
- parts
- cement
- preservation
- storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a heat storage and preservation modified cement, and belongs to the technical field of building materials. The cement raw material prepared by the invention contains portland cement, quartz sand, fly ash and modified SiO 2 Aerogel, plant fiber, black coloring agent, surfactant, foaming agent, water reducing agent and water. The black coloring agent with the heat absorption function is added into the cement, so that the sunlight absorption rate of the cement is improved, and the heat storage performance and the heat preservation capacity of the building material are further improved;the invention also adds modified SiO 2 The aerogel can improve the mechanical property of the material, can also improve the internal structure of cement, and improves the heat preservation and heat insulation performance of the material.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to heat storage and preservation modified cement and a preparation method thereof.
Background
The cement is a powdery hydraulic inorganic cementing material, is added with water and stirred into slurry, can be hardened in the air or in water, can firmly bond sand, stone and other materials together, and is widely applied to the field of buildings, but the cement in the prior art is only used as a conventional cementing material and does not have the functions of heat preservation and heat storage.
The outer wall built by adopting the conventional cement is required to be coated with a heat-insulating material for heat insulation, so that heat loss in the building is prevented, and the living experience of people in the building is improved. However, some light-weight insulating materials are combustible materials, and once a fire breaks out, the fire will rise along the insulating materials outside the building, and the consequences are not reasonable.
Therefore, the properties of the cement material need to be improved, so that the cement material has good heat storage and preservation functions, and the heat storage and preservation functions of a building are improved.
Disclosure of Invention
In view of the above, the present invention aims to provide a modified cement with heat storage and insulation functions, which can improve the heat storage and insulation performance of buildings.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a heat storage and preservation modified cement which comprises the following components in parts by weight:
70-80 parts of Portland cement, 30-45 parts of quartz sand, 10-15 parts of fly ash and modified SiO 2 1-5 parts of aerogel, 6-8 parts of plant fiber, 2.5-4.5 parts of black coloring agent, 4-8 parts of surfactant, 3-7 parts of foaming agent, 1-3 parts of water reducing agent and 60-65 parts of water.
Preferably, the plant fiber is any one of wheat straw or corn straw.
Preferably, the black colorant is one or two of graphite powder and ferroferric oxide powder.
Preferably, the surfactant is one or two of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, glycerol monostearate and polyoxyethylene fatty acid ester.
Preferably, the blowing agent is hydrogen peroxide.
Preferably, the water reducing agent is a polycarboxylate water reducing agent.
The invention also aims to provide a preparation method of the heat storage and insulation modified cement, which comprises the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Portland cement, quartz sand, fly ash and modified SiO 2 Adding aerogel, plant fiber, black coloring agent, surfactant and foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and insulation modified cement.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides modified cement with heat storage and preservation functions, which is characterized in that black coloring agent is added into raw materials, so that the modified cement has a heat absorption effect, improves the sunlight absorption rate, further improves the heat storage performance of building materials, and can improve the heat preservation capability of the materials; at the same time, modified SiO is added 2 The aerogel can improve the mechanical property of the material, improve the internal structure of cement and improve the heat insulation property of the material; the foaming agent is added to form a large amount of bubbles in the cement, so that the heat insulation performance of the material is improved, the plant fiber is added to further improve the heat insulation capacity, and meanwhile, the adhesive force of the cement is good.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
The heat-storage heat-preservation modified cement comprises the following components in parts by weight:
80 parts of Portland cement, 35 parts of quartz sand, 15 parts of fly ash and modified SiO 2 5 parts of aerogel, 6 parts of plant fiber, 4 parts of black coloring agent, 5 parts of surfactant, 3 parts of foaming agent, 1 part of water reducing agent and 65 parts of water;
the portland cement is PI42.5 cement, the plant fiber is wheat straw, and the black colorant is graphite powder; the surfactant is sodium dodecyl benzene sulfonate; the foaming agent is hydrogen peroxide; the water reducing agent is a polycarboxylate water reducing agent.
The preparation method of the heat storage and insulation modified cement comprises the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Portland cement, quartz sand, fly ash and modified SiO 2 Adding aerogel, plant fiber, black coloring agent, surfactant and foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and insulation modified cement.
Example 2
The heat-storage heat-preservation modified cement comprises the following components in parts by weight:
75 parts of Portland cement, 38 parts of quartz sand, 12 parts of fly ash and modified SiO 2 2 parts of aerogel, 8 parts of plant fiber, 4 parts of black coloring agent, 5 parts of surfactant, 5 parts of foaming agent, 1 part of water reducing agent and 60 parts of water.
The portland cement is PI42.5 cement, the plant fiber is wheat straw, and the black colorant is prepared by mixing graphite powder and ferroferric oxide powder according to the weight ratio of 1; the surfactant is glycerol monostearate; the foaming agent is hydrogen peroxide; the water reducing agent is a polycarboxylate water reducing agent.
The preparation method of the heat storage and insulation modified cement comprises the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Portland cement, quartz sand, fly ash and modified SiO 2 Adding aerogel, plant fiber, black coloring agent, surfactant and foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and insulation modified cement.
Example 3
The heat-storage heat-preservation modified cement comprises the following components in parts by weight:
70 parts of Portland cement, 35 parts of quartz sand, 10 parts of fly ash and modified SiO 2 3 parts of aerogel, 7 parts of plant fiber, 3 parts of black coloring agent, 5 parts of surfactant, 3 parts of foaming agent, 2 parts of water reducing agent and 60 parts of water.
The portland cement is PI42.5 cement, the plant fiber is corn straw, and the black colorant is ferroferric oxide powder; the surfactant is fatty acid polyoxyethylene ester; the foaming agent is hydrogen peroxide; the water reducing agent is a polycarboxylate water reducing agent.
The preparation method of the heat storage and insulation modified cement comprises the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Portland cement, quartz sand, fly ash and modified SiO 2 Adding aerogel, plant fiber, black coloring agent, surfactant and foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and insulation modified cement.
Example 4
The heat storage and insulation modified cement comprises the following components in parts by weight:
70 parts of Portland cement, 32 parts of quartz sand, 14 parts of fly ash and modified SiO 2 3 parts of aerogel, 8 parts of plant fiber, 3 parts of black coloring agent, 5 parts of surfactant, 3 parts of foaming agent, 1 part of water reducing agent and 60 parts of water.
The portland cement is PI42.5 cement, the plant fiber is corn straw, and the black colorant is ferroferric oxide powder; the surfactant is sodium dodecyl sulfate; the foaming agent is hydrogen peroxide; the water reducing agent is a polycarboxylate water reducing agent.
The preparation method of the heat storage and insulation modified cement comprises the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Portland cement, quartz sand, fly ash and modified SiO 2 Adding aerogel, plant fiber, black coloring agent, surfactant and foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and insulation modified cement.
Comparative example 1
The modified cement comprises the following components in parts by weight:
80 parts of Portland cement, 30 parts of quartz sand, 15 parts of fly ash, 6 parts of plant fiber, 5 parts of surfactant, 3 parts of foaming agent, 1 part of water reducing agent and 65 parts of water;
the portland cement is PI42.5 cement, the plant fiber is wheat straw, and the surfactant is sodium dodecyl benzene sulfonate; the foaming agent is hydrogen peroxide; the water reducing agent is a polycarboxylate water reducing agent.
The preparation method of the heat storage and insulation modified cement comprises the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Adding portland cement, quartz sand, fly ash, plant fiber, a surfactant and a foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and heat preservation modified cement.
The cement in examples 1 to 4 and comparative example 1 was subjected to a performance test by applying the cement to the outer wall surface of a building, and performing a performance test for 7 days after natural curing, and the results are shown in table 1:
TABLE 1
| Thermal conductivity (W/(m.K)) | Compressive strength (MPa) | |
| Example 1 | 0.026 | 1.30 |
| Example 2 | 0.027 | 1.28 |
| Example 3 | 0.024 | 1.40 |
| Example 4 | 0.022 | 1.32 |
| Comparative example 1 | 0.47 | 0.37 |
As can be seen from the content in Table 1, the cement material prepared by the method has lower heat conductivity coefficient and good heat storage capacity.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The heat storage and insulation modified cement is characterized by comprising the following components in parts by weight:
70 to 80 portions of Portland cement, 30 to 45 portions of quartz sand,10-15 parts of fly ash and modified SiO 2 1-5 parts of aerogel, 6-8 parts of plant fiber, 2.5-4.5 parts of black coloring agent, 4-8 parts of surfactant, 3-7 parts of foaming agent, 1-3 parts of water reducing agent and 60-65 parts of water.
2. The heat-storage and heat-preservation modified cement according to claim 1, wherein the plant fiber is any one of wheat straw and corn straw.
3. The heat-storage and heat-preservation modified cement according to claim 1, wherein the black coloring agent is one or two of graphite powder and ferroferric oxide powder.
4. The heat-storage and heat-preservation modified cement as claimed in claim 1, wherein the surfactant is one or two of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, glycerol monostearate and polyoxyethylene fatty acid ester.
5. The heat-storing and heat-preserving modified cement as claimed in claim 1, wherein the foaming agent is hydrogen peroxide.
6. The heat-storage and heat-preservation modified cement according to claim 1, characterized in that the water reducing agent is a polycarboxylate water reducing agent.
7. The method for preparing the heat-storage heat-preservation modified cement as claimed in claim 1, characterized by comprising the following steps:
(1) Weighing raw materials in proportion, and crushing plant straws into particles of 0.5-1.5 mm;
(2) Portland cement, quartz sand, fly ash and modified SiO 2 Adding aerogel, plant fiber, black coloring agent, surfactant and foaming agent into a mixer, and stirring and mixing to obtain a mixture;
(3) And (3) adding a water reducing agent and water into the mixture obtained in the step (2) in proportion, and continuously stirring to obtain the heat storage and heat preservation modified cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211608939.7A CN115838268A (en) | 2022-12-14 | 2022-12-14 | Heat-storage heat-preservation modified cement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211608939.7A CN115838268A (en) | 2022-12-14 | 2022-12-14 | Heat-storage heat-preservation modified cement and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115838268A true CN115838268A (en) | 2023-03-24 |
Family
ID=85578631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211608939.7A Pending CN115838268A (en) | 2022-12-14 | 2022-12-14 | Heat-storage heat-preservation modified cement and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115838268A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230290A (en) * | 2014-09-02 | 2014-12-24 | 新疆天山水泥股份有限公司 | Black-body cement capable of accumulating heat and preparation method thereof |
| CN108341636A (en) * | 2018-03-13 | 2018-07-31 | 合肥雅克丽新型建材有限公司 | A kind of accumulation of heat black matrix cement constructional material and preparation method thereof |
| CN108863263A (en) * | 2018-07-13 | 2018-11-23 | 桐城市景瑞建筑装饰工程有限公司 | It is a kind of can accumulation of heat black matrix cement material and preparation method |
| CN114315280A (en) * | 2022-01-12 | 2022-04-12 | 王瑾 | Modified aerogel foamed cement material and preparation method thereof |
-
2022
- 2022-12-14 CN CN202211608939.7A patent/CN115838268A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230290A (en) * | 2014-09-02 | 2014-12-24 | 新疆天山水泥股份有限公司 | Black-body cement capable of accumulating heat and preparation method thereof |
| CN108341636A (en) * | 2018-03-13 | 2018-07-31 | 合肥雅克丽新型建材有限公司 | A kind of accumulation of heat black matrix cement constructional material and preparation method thereof |
| CN108863263A (en) * | 2018-07-13 | 2018-11-23 | 桐城市景瑞建筑装饰工程有限公司 | It is a kind of can accumulation of heat black matrix cement material and preparation method |
| CN114315280A (en) * | 2022-01-12 | 2022-04-12 | 王瑾 | Modified aerogel foamed cement material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈昆柏等: "《农业固体废物处理与处置》", vol. 1, 河南科学技术出版社, pages: 143 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110105013B (en) | High-strength anti-cracking foam concrete and preparation method thereof | |
| CN107417202B (en) | Foam concrete for wall sandwich layer and preparation method and application thereof | |
| CN109942267B (en) | Gypsum-based composite light thermal insulation mortar and preparation method thereof | |
| CN102951878A (en) | Lightweight concrete exterior wall insulation building block and production method thereof | |
| CN105801063A (en) | Light-weight, heat-insulating and environment-friendly composite wall building material | |
| CN113354357A (en) | Silica aerogel modified thermal insulation masonry mortar and use method thereof | |
| CN108863226A (en) | A kind of water-proof, heat-insulating, heat-preserving mortar and preparation method thereof | |
| CN102701687A (en) | Insulated fireproof material of polyurethane cement foam and preparation method of insulated fireproof material | |
| CN108328992A (en) | A kind of lightweight concrete energy-conserving thermal insulation board and preparation method thereof | |
| CN108585927A (en) | A kind of nano-cellulose aerogel thermal insulation board and preparation method thereof | |
| CN111747705A (en) | Preparation method and application of special bonding mortar material for foam glass external thermal insulation system | |
| CN105272343A (en) | Environmentally friendly heat-insulation fireproof mortar and preparation method thereof | |
| CN110342888A (en) | A kind of high ductility thermal insulation mortar | |
| CN105819801A (en) | Inorganic thermal insulation mortar toughened by doping wheat straw fibers and application method thereof | |
| CN111348883A (en) | Autoclaved aerated concrete with high crack resistance and low water absorption rate and preparation method thereof | |
| CN112321237A (en) | Solid waste fly ash high-strength foam concrete and preparation method thereof | |
| CN108530000A (en) | A kind of thermal insulation mortar and its manufacturing method | |
| CN109231948A (en) | A kind of light fire-proof composite partition wall plate and preparation method thereof | |
| CN105314933B (en) | A kind of low heat conductivity heat-insulating mortar | |
| CN108546048B (en) | Foam concrete composite wallboard core material and preparation method thereof | |
| CN105819778A (en) | Preparation method of light, thermal insulation, and environment-friendly composite wall construction material | |
| CN112851255A (en) | Self-heat-insulation building material for high and cold areas and preparation method | |
| CN112047698A (en) | Low-loss light high-strength pump concrete and preparation method thereof | |
| CN115838268A (en) | Heat-storage heat-preservation modified cement and preparation method thereof | |
| CN112266640A (en) | Anhydrite-based indoor micro-expansion type steel structure fireproof coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |