CN1062048C - Method for making building mortar using waste ammonia-soda dregs - Google Patents
Method for making building mortar using waste ammonia-soda dregs Download PDFInfo
- Publication number
- CN1062048C CN1062048C CN 94110470 CN94110470A CN1062048C CN 1062048 C CN1062048 C CN 1062048C CN 94110470 CN94110470 CN 94110470 CN 94110470 A CN94110470 A CN 94110470A CN 1062048 C CN1062048 C CN 1062048C
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- China
- Prior art keywords
- mortar
- ammonia
- waste residue
- soda
- alkali waste
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- 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.)
- Expired - Fee Related
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention belongs to the technical field of improving the performance of building mortar by waste materials. The existing ammonia-soda method for producing calcined soda generates a large amount of waste slag which is stacked for a long time to form 'white sea', so that the environment is polluted. Ammonia-soda waste slag is utilized to completely replace lime putty to be added in cement and sand which are uniformly mixed, and the ammonia-soda waste slag, the cement and the are uniform mixed by adding water; thereby, building mortar with various labels is prepared. The present invention has the advantages of simple preparation method, and economical and practical effect. The building mortar has the advantages of good workability, high anti-compression strength and good freezing resistance, and is convenient for winter construction.
Description
The invention belongs to and utilize waste material to improve the technical field of building mortar performance.
Now, the soda ash technology maturation is produced in ammonia-soda process, and raw material sources are abundant, and good product quality is occupied an leading position in world's soda ash production.But its disadvantage is that ammonia alkali waste sludge discharge amount is big, piles up throughout the year, pollutes large stretch of beach, forms " white sea ", contaminated environment.
At present, the building mortar of making is commonly used four kinds of 25#, 50#, 75# and 100#.The mortar of different labels, the consumption difference of cement, and constant i.e. which kind of the label mortar no matter of the consumption of sand, preparation 1m
3The consumption of its sand of mortar is 1m
3Be to increase the workability of mortar, reduce the consumption of cement, mostly mix lime putty in the mortar of being produced, its consumption changes with the change of cement consumption.Lime putty is that China's industry waits the required important source material in each field.In addition, add the building mortar that lime putty is made, do not have anti-freezing property, can not construct winter, must add antifreeze, and this has just increased cost.
The invention provides a kind of method of making building mortar,, improve mortar performance and result of use, reach and save China's important source material, turn waste into wealth, reduce the purpose of pollution, environment purification with the complete replacing lime cream of ammonia alkali waste residue.
Task of the present invention is finished like this: the ammonia alkali waste residue is added in the even compound of desire preparation required cement of label mortar and sand, add water gradually, uniform mixing transfers to consistency of mortar and is 5-10cm.The mode of mixing and stirring can be with artificial, also available machinery.
The used ammonia alkali waste residue of the present invention is an isolated solid content in the ammonia-soda process soda ash factory waste liquid of discharging.Its outward appearance is a white, is paste or pulpous state, and moisture content is 50-70%.Its composition roughly following (in butt): CaCO
335--61%, CaCL
210--16%, NaCL3--9%, CaSO
41--6%, CaO6--15%, MgCO
32--5%, R
2O
32--6% and acid non-soluble substance 5-10%.The addition of this ammonia alkali waste residue in mortar changes with the consumption of cement is different.Following (units/the m of its consumption
3Mortar)
A, consumption is 24.5-49 (in a butt) in the 25# mortar
B, consumption is 17.5-42 (in a butt) in the 50# mortar
C, consumption is 14-35 (in a butt) in the 75# mortar
D, consumption is 10.5-28 (in a butt) in the 100# mortar
It is good that the building mortar of making of the ammonia alkali waste residue has workability, the performance that compressive strength is high, not only replacing lime cream (seeing Table 1) fully, and amount ratio lime putty few (seeing Table 2).In addition, the ammonia alkali waste residue is compared with lime putty, and the building mortar of its making also has anti-freezing property, is convenient to winter construction, favourable accelerating construction progress (seeing Table 3).The building mortar of making of the ammonia alkali waste residue not only makes refuse be utilized effectively, and easy to make simple, easy to use, and good economic benefit and social benefit are arranged.
Table 1. ammonia alkali waste residue and the lime putty performance comparison in building mortar
Table 2. ammonia alkali waste residue and the contrast of lime putty consumption
The anti-freezing property of table 3. ammonia alkali waste residue
The present invention can do further narration with following examples:
With moisture content is that the ammonia alkali waste residue of 50-65% adds water 15-0% and transfers to the solvent or diluent that denseness reaches 12cm and do following test:
One, preparation 25# mortar 0.01m
3
Example 1 is got 0.70kg ammonia alkali waste residue solvent or diluent (basic 0.245kg gives money as a gift) and is added among the 425# cement 1.10kg and medium sand 14kg that has mixed, adds water to 2.23kg gradually, artificial uniform mixing.Surveying its denseness is 6.7cm, and delamination degree is 2.0cm, and the test block mean compressive strength is 5.6MPa, and every index meets this label quality requirement.(annotate: mean compressive strength refers to indoor stuffy place maintenance 28 day the test data of test block under 20 ± 5 ℃ and normal humidity condition.Following examples are omitted).
Example 2 is got moisture content and is 70% ammonia alkali waste residue solvent or diluent 1.63kg (basic 0.49kg gives money as a gift), adds among the 425# cement 1.10kg and medium sand 14kg that has mixed, adds water to 1.82kg gradually, artificial uniform mixing.Surveying its denseness is 7.3cm, and delamination degree is 1.2cm, and the test block mean compressive strength is 3.0MPa.Every index meets this label quality requirement.
Two, preparation 50# mortar 0.01m
3
Example 1, get 0.50kg ammonia alkali waste residue solvent or diluent (basic 0.175kg gives money as a gift), add the 425# cement 1.80kg and the medium sand 14kg that have mixed, add water to 2.44kg gradually, artificial uniform mixing, surveying its denseness is 8.2cm, delamination degree is 2.0cm, the test block mean compressive strength is 14.8MPa, and every index meets this label mortar quality requirement.
Example 2 is got moisture content and is 70% ammonia alkali waste residue solvent or diluent 0.82kg (basic 0.245kg gives money as a gift) and adds among the 425# cement 1.80kg and medium sand 14kg that has mixed, adds water to 2.09kg gradually, artificial uniform mixing.Surveying its denseness is 8.5cm, and delamination degree is 1.5cm, and the test block mean compressive strength is 10.1MPa, and every index meets this label mortar quality requirement.
Three, preparation 75# mortar 0.01m
3
Example 1 is got 0.40kg ammonia alkali waste residue solvent or diluent (basic 0.14kg gives money as a gift) and is added among the 425# cement 2.30kg and medium sand 14kg that has mixed, adds water to 2.41kg gradually, artificial uniform mixing.Surveying its denseness is 8.2cm, and delamination degree is 1.8cm, and the test block mean compressive strength is 22.5MPa, and every index meets this label mortar quality requirement.
Example 2 is got moisture content and is 70% ammonia alkali waste residue solvent or diluent 1.17kg (basic 0.35kg gives money as a gift) and adds among the 425# cement 2.30kg and medium sand 14kg that has mixed, adds water to 2.07kg gradually, artificial uniform mixing.Surveying its denseness is 7.9cm, and delamination degree is 1.3cm.The test block mean compressive strength is 15.1MPa, and every index meets the quality requirement of this label mortar.
Four, preparation 100# mortar 0.01m
3
Example 1 is got 0.8kg ammonia alkali waste residue solvent or diluent (basic 0.28kg gives money as a gift) and is added among the 425# cement 2.70kg and medium sand 14kg that has mixed, adds water to 1.98kg gradually, mechanical uniform mixing.Surveying its denseness is 8.5cm, and delamination degree is 0.7cm.The test block mean compressive strength is 23.5MPa, and every index meets this label mortar quality requirement.
Example 2, getting moisture content and be 70% ammonia alkali waste residue solvent or diluent 0.35kg (basic 0.105kg gives money as a gift) adds among the 425# cement 2.70kg and medium sand 14kg that has mixed, add water to 2.15kg gradually, the machinery uniform mixing, surveying its denseness is 8.2cm, delamination degree 1.4cm, the test block mean compressive strength is 27.2MPa, every index meets this label mortar quality requirement.
Table 1
Annotate: 1, cement is 425# 2, medium sand: mud amount 2.7%, capacity 1400kg/m
3
3, lime putty: denseness 12cm, moisture content 55%
4, ammonia alkali waste residue: denseness 12cm, moisture content 65%
Table 2
Annotate: 1: cement is 425# 2, medium sand: mud content 2.7%, unit weight 1400kg/m
3
2, lime putty; Denseness 12cm, moisture content 55%
4, ammonia alkali waste residue: denseness 12cm, moisture content 65%
Table 3
Annotate: 1, cement is 425#, medium sand unit weight 1400kg/m
3, ammonia alkali waste residue denseness is 12cm, moisture content 65%
2, loss of strength is not higher than 25%, and loss of weight is not higher than 5%, and the two all reaches and promptly has frost resistance.
Claims (3)
1. a method of making building mortar with the ammonia alkali waste residue is characterized in that the ammonia alkali waste residue is added in the even compound of desire preparation required cement of label mortar and sand, adds water gradually, with artificial or mechanical uniform mixing.
2. by the described method of making building mortar with the ammonia alkali waste residue of claim 1, it is characterized in that the ammonia alkali waste residue is paste or pulpous state, moisture content is 50-70%.
3. by claim 1 or 2 described methods of making building mortars with ammonia alkali waste residues, the addition that it is characterized in that the ammonia alkali waste residue changes with the change of cement consumption, its consumption:
A. in the 25# mortar, be 24.5-49kg/m in the butt consumption
3Mortar;
B. in the 50# mortar, be 17.5-42kg/m in the butt consumption
3Mortar;
C. in the 75# mortar, be 14-35kg/m in the butt consumption
3Mortar;
D. in the 100# mortar, be 10.5-28kg/m in the butt consumption
3Mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110470 CN1062048C (en) | 1994-02-18 | 1994-02-18 | Method for making building mortar using waste ammonia-soda dregs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110470 CN1062048C (en) | 1994-02-18 | 1994-02-18 | Method for making building mortar using waste ammonia-soda dregs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1105415A CN1105415A (en) | 1995-07-19 |
| CN1062048C true CN1062048C (en) | 2001-02-14 |
Family
ID=5034435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110470 Expired - Fee Related CN1062048C (en) | 1994-02-18 | 1994-02-18 | Method for making building mortar using waste ammonia-soda dregs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062048C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111848034B (en) * | 2020-07-16 | 2022-05-10 | 广州大学 | A kind of wet mixed mortar and preparation process |
-
1994
- 1994-02-18 CN CN 94110470 patent/CN1062048C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1105415A (en) | 1995-07-19 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |