CN1144206A - Graining blast furnace slag cement mortar - Google Patents
Graining blast furnace slag cement mortar Download PDFInfo
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- CN1144206A CN1144206A CN94117380A CN94117380A CN1144206A CN 1144206 A CN1144206 A CN 1144206A CN 94117380 A CN94117380 A CN 94117380A CN 94117380 A CN94117380 A CN 94117380A CN 1144206 A CN1144206 A CN 1144206A
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- cement
- blast furnace
- furnace slag
- cement mortar
- mortar
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- 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
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The granulated blast furnace slag cement mortar belongs to the field of building material, mainly is used for solving the problems of floor cracking, sandy and blistering in civil construction and industrial architecture. It is composed of cement, granulated blast furnace slag and sand as raw materials with mixture ratio of 1:1-1.5:1.5-4. If said mortar is used for making heat-insulating and sound-insulating layer, it can partially or completely substitute the above-mentioned sand by perlite, and if the mortar is used for prefabricating blocks, the mixing ratio of the above-mentioned cement can be further raised.
Description
The present invention relates to a kind of graining blast furnace slag cement mortar, belong to building material field.
Blast Furnace Ore slag system ironmaking back waste residue, its main component is Calucium Silicate powder and calcium aluminate.The producer that initial stage in the sixties has is developed into slag cement, but slag is not still had record as aggregate.
In civilian and Industrial buildings, ground surface works is made surface layer with sand-cement slurry always, and the middle layer is original soil rammed and other bed courses with concrete or Steel Concrete, basic unit.With the ground of aforesaid method construction, through not long-time, the floor surface crackle following several situations appears easily:; Surface layer and middle layer hollowing; The surface layer dusting.The major cause that causes ground crackle, hollowing, dusting is by following two aspects, 1. constructing operation aspect: the sand silt content exceeds standard, and grain composition is unreasonable; Mortar stirs irregular, and water consumption is many; The press polish pass is not enough, and health is untimely.2. execution conditions aspect: water is restricted; Low when high during sand supply silt content; Cement and sand synthetic sand-cement slurry arrive construction point back and are difficult to guarantee suitable slump.All carry out a large amount of doing over again every year in the face of above several situations, become the common fault in the building trade, and be written into that " the construction engineering quality common fault is prevented and treated among the handbook.
The object of the present invention is to provide a kind of blast furnace slag cement mortar that is used for ground, heat preservation and soundproof layer and building block (entity and hollow).With ground, heat preservation and soundproof layer and the building block after the construction of this mortar, both made under the relatively poor situation of execution conditions, its quality is not subjected to big influence yet.
The present invention is used for the graining blast furnace slag cement mortar on ground, is raw material with cement, slag, native sand, and its nominal mix proportion is 1: 1～1.5: 1.5～6, and its optimum mix is 1: 1.5: 1.5.Cement, slag, native sand must be stirred in the construction, and slump as requested adds water.
The present invention is used to be incubated, the blast furnace slag cement mortar of pugging, and it consists of cement, slag, perlite, native sand, and its nominal mix proportion is 1: 4～6: 0.2～0.5: 0.3～0.5, stir, and slump as requested adds water.
The present invention is used for building block (entity and hollow) ready-formed blast furnace slag cement mortar, and its composition is cement, slag, native sand, and its nominal mix proportion is 1: 3～5: 1～1.5 to stir, and slump as requested adds water.
The present invention compares habitual sand-cement slurry and has following advantage: the ground of construction does not have hollowing, flawless, not dusting; Habitual sand-cement slurry will be used free sand, and price is more expensive, and graining blast furnace slag cement mortar, and the grain slag of use, native sand price are more cheap; Reduce the deadweight of buildings, and had insulation, sound damping effect; Utilization of waste material reduces environmental pollution; Save time in the operation, laborsaving, efficient is high, once survive not worry to do over again.
The most typical embodiment of the present invention is used for ground surface works, is raw material with cement, slag, native sand, and nominal mix proportion is 1: 1.5: 1.5.
Blast-furnace slag is to be the matter of melts behind the quenching granulating of main component with Calucium Silicate powder and calcium aluminate, and its physical properties is as follows:
Particle diameter: 0.5～4mm thermal conductivity: 0.14～0.22
Unit weight: 0.9～1.00t/m
3Contract with dry rate: 5～8/1000
Fire line: water-intake rate does not burn: 6～12%
Frost resistance: freezing and thawing test≤5%, intensity reduces≤15%
Its chemical ingredients is as follows:
| Composition | SiO 2 | ?Al 2O 3 | ?Cao | ???MgO | ????FeO | ????MnO | ?S |
| ?％ | 33-34 | ?11-12 | ?42-43 | ???2-3 | ????0.8 | ????2-3 | ?0.6-0.7 |
As can be seen its processing be can be used as fully the raw material of system cement after levigate from the chemical property of blast-furnace slag.There not being the levigated granulated blast-furnace slag to participate in the cement, add water after, the slag surface will form four main compound in hydration process: calcium hydroxide, moisture Calucium Silicate powder, moisture calcium aluminate and moisture calcium ferrite.These several main compound have just determined some characteristics in the slag cement mortar hardening process.
Be the two strength growth rate test-results of ordinary Portland cement and blast furnace slag cement mortar below:
| Strength growth rate % | 3 days | 7 days | 28 days | 90 days | 365 days |
| Ordinary Portland cement | 67～71 | ?84～93 | ????100 | ?112～118 | ?118～120 |
| The slag cement mortar | 24～62 | ?45～78 | ????100 | ?110～142 | ?122～168 |
Test-results shows; after granulated blast-furnace slag participates in and adds water in the cement; the intensity that its process of setting reaches from dissolving-gel-sclerosis (3 days, 7 days, 28 days) is satisfactory, can make mortar mark from 4kg/cm～200kg/cm, can satisfy the requirement of design and construction fully.In addition, its process of setting gain in strength is stable, and drying shrinkage is little, and frost resistance is good, and it is qualitative good, thereby not hollowing, flawless, not dusting of product.
Be the contrast of graining blast furnace slag cement mortar goods and 5 indexs of several plastics products for building below:
| Title | Porosity | Tightness | Unit weight | Thermal conductivity | Ultimate compression strength |
| General | 0.07-0.26 | ?0.74-0.93 | ?2-2.5 | ?1.1-1.3 | ????50-600 |
| General | 0.7-0.9 | ?0.1-0.3 | ?0.3-0.9 | ?0.1-0.25 | ????5-150 |
| Common brick | 0.3-0.37 | ?0.63-0.7 | ?1.7-1.9 | ?0.7 | ????50-200 |
| The slag cement mortar | 0.5-0.65 | ?0.45-0.25 | ?0.6-1.25 | ?0.25-0.35 | ????50-200 |
As can be seen from the table, it is big that the slag cement mortar has porosity, and tightness is little, and unit weight is low, the characteristics that thermal conductivity is low, thereby have insulation, sound damping effect.
Claims (4)
1. graining blast furnace slag cement mortar, it is characterized in that: its starting material and nominal mix proportion are cement: grain slag: native sand equals 1: 1.5: 1.5～and 4, and the slump as requested adds water.
2. graining blast furnace slag cement mortar according to claim 1 is characterized in that: cement: grain slag: the optimum mix of native sand is 1: 1.5: 1.5.
One kind be used to be incubated, the graining blast furnace slag cement mortar of pugging, it is characterized in that: its starting material and nominal mix proportion are cement: grain slag: perlite: native sand equals 1: 4～6: 0.2～0.5: an amount of, and the slump as requested adds water.
4. one kind is used for the graining blast furnace slag cement mortar that system is given in building block (entity and hollow), and it is characterized in that: its starting material and nominal mix proportion are cement: grain slag: native sand equals 1: 3～and 5: 1～1.5, and the slump as requested adds water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117380A CN1144206A (en) | 1994-10-31 | 1994-10-31 | Graining blast furnace slag cement mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117380A CN1144206A (en) | 1994-10-31 | 1994-10-31 | Graining blast furnace slag cement mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1144206A true CN1144206A (en) | 1997-03-05 |
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ID=5038315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94117380A Pending CN1144206A (en) | 1994-10-31 | 1994-10-31 | Graining blast furnace slag cement mortar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360456C (en) * | 2006-04-29 | 2008-01-09 | 刘万友 | Composition for manufacturing building block and method thereof |
-
1994
- 1994-10-31 CN CN94117380A patent/CN1144206A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360456C (en) * | 2006-04-29 | 2008-01-09 | 刘万友 | Composition for manufacturing building block and method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |