CN114085047A - Calcareous material for autoclaved aerated concrete - Google Patents
Calcareous material for autoclaved aerated concrete Download PDFInfo
- Publication number
- CN114085047A CN114085047A CN202111206544.XA CN202111206544A CN114085047A CN 114085047 A CN114085047 A CN 114085047A CN 202111206544 A CN202111206544 A CN 202111206544A CN 114085047 A CN114085047 A CN 114085047A
- Authority
- CN
- China
- Prior art keywords
- sand
- calcareous
- aerated concrete
- autoclaved aerated
- weight
- 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
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a calcareous material for autoclaved aerated concrete, which comprises 60-80 parts by weight of calcareous sand, 3-8 parts by weight of calcareous additive, 2-5 parts by weight of calcareous water reducing agent and 2-6 parts by weight of fiber. The invention discloses a calcareous material which can completely replace siliceous sand, improves the strength of concrete and is particularly suitable for positive pressure aerated concrete.
Description
Technical Field
The invention belongs to the field of concrete, and particularly relates to a calcareous material for autoclaved aerated concrete.
Background
Concrete is usually made by mixing sand, gravel, cement and cement. Wherein the sand used mainly comprises silicon dioxide. However, as the amount of mining of siliceous sand decreases year by year and it is difficult to find siliceous sand locally in the construction of islands such as sea, there is a growing need for a sand substitute.
Disclosure of Invention
In order to solve the problems, the invention discloses a calcareous material for autoclaved aerated concrete. The invention discloses a calcareous material which can completely replace siliceous sand, improves the strength of concrete and is particularly suitable for positive pressure aerated concrete.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a calcareous material for autoclaved aerated concrete comprises 60-80 parts by weight of calcareous sand, 3-8 parts by weight of calcareous additive, 2-5 parts by weight of calcareous water reducing agent and 2-6 parts by weight of fiber.
Further improvement, the calcareous additive comprises hydrated lime powder, carbide slag and ash calcium powder, and the mass ratio of the hydrated lime powder to the carbide slag to the ash calcium powder is 1-3: 1-2: 2-4.
Further improvement, the mass ratio of the quicklime powder to the carbide slag to the sierozem powder is 2: 1: 3.
in a further improvement, the calcareous water reducing agent is calcium lignosulphonate.
In a further improvement, the fibers are chopped basalt fibers or glass fibers.
In a further refinement, the calcareous sands include coarse sand, medium sand, and fine sand; the range of the coarse sand grain size is 0.5 mm-1 mm, the range of the medium sand grain size is 0.25 mm-0.5 mm, and the range of the fine sand grain size is 0.25 mm-0.125 mm.
Further improvement, the mass ratio of the coarse sand to the medium sand to the fine sand is 3-5: 6-8:2-4.
Further improvement, the mass ratio of the coarse sand to the medium sand to the fine sand is 3: 6:2.
The invention has the advantages that:
the invention discloses a calcareous material which can completely replace siliceous sand, improves the strength of concrete and is particularly suitable for positive pressure aerated concrete.
Detailed Description
The technical means of the present invention will be specifically described below by way of specific embodiments.
Example 1
The calcareous material for autoclaved aerated concrete comprises 60 parts by weight of calcareous sand, 3 parts by weight of calcareous additive, 2 parts by weight of calcium lignosulfonate and 2 parts by weight of chopped basalt fiber. Wherein the calcareous sand comprises coarse sand, medium sand and fine sand; the range of coarse sand particles is 0.5-1 mm, the range of medium sand particles is 0.25-0.5 mm, the range of fine sand particles is 0.25-0.125 mm, and the mass ratio of coarse sand to medium sand to fine sand is 3: 6:4. The calcareous additive comprises hydrated lime powder, carbide slag and ash calcium powder, wherein the mass ratio of the hydrated lime powder to the carbide slag to the ash calcium powder is 1: 2.
example 2
A calcareous material for autoclaved aerated concrete comprises 80 parts by weight of calcareous sand, 8 parts by weight of calcareous additive, 5 parts by weight of calcium lignosulphonate and 6 parts by weight of glass fiber. Wherein the calcareous sand comprises coarse sand, medium sand and fine sand; the range of coarse sand particles is 0.5-1 mm, the range of medium sand particles is 0.25-0.5 mm, the range of fine sand particles is 0.25-0.125 mm, and the mass ratio of coarse sand to medium sand to fine sand is 5: 8:4. The calcareous additive comprises hydrated lime powder, carbide slag and ash calcium powder, wherein the mass ratio of the hydrated lime powder to the carbide slag to the ash calcium powder is 3: 2: 4.
Example 3
A calcareous material for autoclaved aerated concrete comprises 70 parts by weight of calcareous sand, 5 parts by weight of calcareous additive, 3 parts by weight of calcium lignosulfonate and 3 parts by weight of chopped basalt fibers. Wherein the calcareous sand comprises coarse sand, medium sand and fine sand; the range of coarse sand grain size is 0.5 mm-1 mm, the range of medium sand grain size is 0.25 mm-0.5 mm, the range of fine sand grain size is 0.25 mm-0.125 mm, and the mass ratio of coarse sand to medium sand to fine sand is 5: 8:4. The calcareous additive comprises hydrated lime powder, carbide slag and ash calcium powder, wherein the mass ratio of the hydrated lime powder to the carbide slag to the ash calcium powder is 3: 2: 4.
tests show that the calcareous materials of the above examples 1 to 3 can completely replace siliceous sand, and make the concrete have stronger strength, and the relative strength is respectively increased by 6%, 5% and 9%.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, but rather is capable of being applied to various fields in which the invention is suited, and further modifications will readily occur to those skilled in the art, and it is therefore intended that the invention not be limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. The calcareous material for autoclaved aerated concrete is characterized by comprising 60-80 parts by weight of calcareous sand, 3-8 parts by weight of calcareous additive, 2-5 parts by weight of calcareous water reducer and 2-6 parts by weight of fiber.
2. The calcareous material for autoclaved aerated concrete according to claim 1, wherein the calcareous additive comprises hydrated lime powder, carbide slag and sierozem powder, and the mass ratio of the hydrated lime powder to the carbide slag to the sierozem powder is 1-3: 1-2: 2-4.
3. The calcareous material for autoclaved aerated concrete according to claim 2, wherein the mass ratio of the quicklime powder, the carbide slag and the sierozem powder is 2: 1: 3.
4. the calcareous material for autoclaved aerated concrete according to claim 1, wherein the calcareous water reducing agent is calcium lignosulfonate.
5. The calcareous material for autoclaved aerated concrete according to claim 1, wherein said fibers are chopped basalt fibers or glass fibers.
6. The calcareous material for autoclaved aerated concrete according to claim 1, wherein said calcareous sand comprises coarse sand, medium sand and fine sand; the range of the coarse sand grain size is 0.5 mm-1 mm, the range of the medium sand grain size is 0.25 mm-0.5 mm, and the range of the fine sand grain size is 0.25 mm-0.125 mm.
7. The calcareous material for autoclaved aerated concrete according to claim 6, wherein the mass ratio of the coarse sand to the medium sand to the fine sand is 3-5: 6-8:2-4.
8. The calcareous material for autoclaved aerated concrete according to claim 7, wherein the mass ratio of the coarse sand to the medium sand to the fine sand is 3: 6:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111206544.XA CN114085047A (en) | 2021-10-17 | 2021-10-17 | Calcareous material for autoclaved aerated concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111206544.XA CN114085047A (en) | 2021-10-17 | 2021-10-17 | Calcareous material for autoclaved aerated concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114085047A true CN114085047A (en) | 2022-02-25 |
Family
ID=80297099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111206544.XA Pending CN114085047A (en) | 2021-10-17 | 2021-10-17 | Calcareous material for autoclaved aerated concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114085047A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072072A (en) * | 2014-06-30 | 2014-10-01 | 江苏新光环保工程有限公司 | Autoclaved aerated concrete and preparation method thereof |
| CN110590274A (en) * | 2019-07-24 | 2019-12-20 | 合肥工业大学 | Method for preparing concrete by using calcareous sand |
-
2021
- 2021-10-17 CN CN202111206544.XA patent/CN114085047A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072072A (en) * | 2014-06-30 | 2014-10-01 | 江苏新光环保工程有限公司 | Autoclaved aerated concrete and preparation method thereof |
| CN110590274A (en) * | 2019-07-24 | 2019-12-20 | 合肥工业大学 | Method for preparing concrete by using calcareous sand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5383967A (en) | Natural silica-containing cement and concrete composition | |
| CN106587831B (en) | A kind of superhigh-lift pumping maritime concrete and preparation method thereof | |
| CN113135727B (en) | Red mud-based material for roadbed water stabilization layer and preparation method thereof | |
| CA2981423A1 (en) | Improved manufactured natural pozzolan, improved manufactured natural pozzolan-based cement and method of making and using same | |
| CN105622009B (en) | A kind of ultra-high performance concrete matrix without silicon ash and preparation method thereof | |
| WO2007057510A1 (en) | Aqueous suspension based on hydraulic binder and a process for the production thereof | |
| KR102158524B1 (en) | Eco-friendly solidifying composition for weak ground | |
| CN113735526A (en) | Soft soil hardening agent for sea area environment | |
| CN112794690B (en) | Steam-curing-free static pressure forming pavement brick and preparation method thereof | |
| CN101177338A (en) | Highly-controllable strength and dimensionally-stable curing material | |
| KR20020039520A (en) | Non-Sintering cement using mainly blast furnace slag | |
| CN110436801A (en) | A kind of highly resistance folding composite Portland cement and preparation method | |
| Akhtar et al. | A comparative study of strength and durability characteristics of concrete and mortar admixture by bacterial calcite precipitation: A review | |
| CN112777978B (en) | High-performance anti-layering pavement rubber concrete | |
| CN113603383A (en) | PRM concrete reinforcing agent | |
| CN114085047A (en) | Calcareous material for autoclaved aerated concrete | |
| CN111747719A (en) | PRM concrete reinforcing agent | |
| KR100464819B1 (en) | An ultra-rapid setting inorganic binder compound based of alkali-activated alumino-silicate | |
| CN115490448B (en) | Method for reducing self-shrinkage of ultra-high-performance concrete, high-strength concrete and high-strength mortar | |
| CN113735523A (en) | Grouting material and preparation method thereof | |
| CN113666676A (en) | Underwater concrete repairing and reinforcing material and preparation method thereof | |
| KR20200031537A (en) | Porous concrete block using oil refining by-product | |
| CN112430026A (en) | Recycled concrete based on waste concrete and preparation method thereof | |
| CN108358480A (en) | A kind of environmentally friendly cement | |
| KR100521848B1 (en) | Soil solidifier for week stratum containing waste concrete sludge |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220225 |