CN1008728B - Low clinker phosphorous residue cement and its technology method - Google Patents
Low clinker phosphorous residue cement and its technology methodInfo
- Publication number
- CN1008728B CN1008728B CN 87107249 CN87107249A CN1008728B CN 1008728 B CN1008728 B CN 1008728B CN 87107249 CN87107249 CN 87107249 CN 87107249 A CN87107249 A CN 87107249A CN 1008728 B CN1008728 B CN 1008728B
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- China
- Prior art keywords
- cement
- days
- phosphorous
- slag
- phosphorus slag
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to low clinker phosphorous residue cement containing phosphorous residues as a principal component and a technological method thereof. The cement is made from phosphorous residues, clinkers and high-temperature gypsum calcined at a high temperature of 850 to 950 DEG C. The technological method of the present invention is similar to that of slag portland cement, and the cement produced by the formula and the method of the present invention completely meets the standard of 325<#> cement in GB1344-85. The early strength of the cement is relatively low, but the later strength is high. The present invention has the advantages of low production cost and simple technology, and is suitable for commercial production.
Description
The present invention relates to a kind of cement new variety, it is to utilize the waste material-phosphorus slag of discharging in the phosphorus production to prepare the method for low clinker phosphorous residue cement or rather.
Phosphorus slag is to refine yellow phosphorus by phosphatic rock in high-temperature electric resistance furnace in the phosphorus production to discharge the also waste material of water granulation shape thing later on, one ton of yellow phosphorus of every production, discharge seven tons of phosphorus slags approximately, a large amount of phosphorus slags are stacked for a long time, large stretch of farmland that not only accounts for, also contaminate environment, for fully utilizing this industrial waste, before the present invention proposed, existing both at home and abroad many producers used phosphorus slag as active mixed material, were used for operating mine slag portland cement and portland-pozzolan cement." cement " magazine that building material industry portion technical intelligence research on standard is edited is in " water quenching phosphorus slag is done the mixed material research of cement " literary composition that Liu Meihong that 1984 the 3rd periodicals are stepped on etc. is write, to utilizing producing cement with phosphatic slag research, in their achievement in research, the volume maximum of phosphorus slag in cement is not more than 30%, phosphorus slag only uses as a kind of blended material of cement, the content of phosphorus slag is low, and utilization ratio is not really high.And be the low clinker phosphorous residue cement of major ingredient with the phosphorus slag, yet there are no open report.
Purpose of the present invention is very clear and definite, in high-temperature electric resistance furnace refine by phosphatic rock in order to make full use of in the phosphorus production that yellow phosphorus is discharged later on and the waste material of water granulation shape thing-phosphorus slag preparation is the method for the low clinker phosphorous residue cement of major ingredient with the phosphorus slag exactly, make it can eliminate the pollution of phosphorus slag, can obtain a kind of inexpensive cement new variety again environment.
For achieving the above object, the present invention adopts the integral part of these three kinds of materials of phosphorus slag, grog and high temperature gypsum as low clinker phosphorous residue cement, in these three kinds of materials, is major ingredient with the phosphorus slag, the quality coefficient ((C of phosphorus slag
aO+MgO+Al
2O
3)/(SiO
2+ P
2O
5)) requirement must not be less than 1.2.The two all is as activity excitant for grog and high temperature gypsum, phosphorus slag is played the dual excitation of alkalescence, vitriol, this is because produce hydrated calcium silicate after the grog aquation, simultaneously discharge a large amount of calcium hydroxides again and Calucium Silicate powder in the middle of their can be more stable in conjunction with the generation crystal with gypsum, the ettringite that intensity is higher.And the high temperature gypsum plays strong effect to exciting in the later stage of vitriol in the phosphorus slag, and this as can be seen from Table 1.The dosage of grog and high temperature gypsum adapts to, and will inevitably quicken the activity performance of phosphorus slag, improves cement intensity.The present invention adopts following prescription: be by weight ratio, phosphorus slag 75～85%, grog 10～20%, high temperature gypsum 5～10%, wherein with phosphorus slag 80%, grog 15%, high temperature gypsum 5% and phosphorus slag 80%, grog 10%, the best results of high temperature gypsum 10% this two assembly side.By above-mentioned prescription, its production technique is identical with equipment with the technology of operating mine slag portland cement with equipment.
The high temperature gypsum that the present invention adopts is that the ordinary student gypsum is made through the high-temperature calcination more than 850～950 ℃, and calcination mode and calcined lime are similar, and the high temperature gypsum after the calcination is alkalescence.
The used grog of the present invention is to produce silicate cement grog commonly used.
According to above method, we have carried out intensity experiment to the low clinker phosphorous residue cement of different proportionings, and experimental result sees Table 2.From experimental result, this cement intensity was lower before 7 days, and later intensity was very high in 28 days, and its strength development leaped between 28 days at 7 days, if the cement of using always with China is made comparisons, pressed the standard of GB1344-85, and 7 days intensity of this cement only is equivalent to 325
#Slag cement, trass cement powder pulverized fuel ash cement, 28 days intensity has then reached 525
#The cement index.The cement that this explanation is produced by the method for the invention can satisfy among the GB1344-85 325 fully
#The cement intensity standard.
Through the experiment of various proportioning cement in the long-time his-and-hers watches 2 repeatedly, we find, number best with the strength of cement feature of L-4 sample ratio proportioning by L-2 sample in the table 2, circulation ratio is also best, and experimental result sees Table 3.
The phosphorus slag volume is to the influence of cement setting time, total trend is the time of volume increase and prolongation initial set and final set, but guarantee the qualified of cement setting time, grog itself will have the good rerum natura of condensing, gypsum as adjustable solidification agent is absolutely necessary, by the low clinker phosphorous residue cement of method preparation of the present invention, its time of coagulation and stability index all meet the GB1344-85 standard, and experimental result sees Table 4.
Low clinker phosphorous residue cement is applicable to makes steaming pressing product.Table 5 is intensity and cost contrasts that this cement is made the cement electric pole and the Portland cement electric pole of autoclaved material trial-production.Table 6 is intensity experiment results that this cement is made the cement sanded brick of autoclaved material trial-production.Though this cement is early on the low side by force, the mortar and the concrete wet curing condition of the preparation of construction back will be got well, if convert this cement to steam-cured goods, not only can improve the intensity of goods, also can accelerate the product turnover, reduce cost.
In the low clinker phosphorous residue cement, the phosphorus slag consumption is big, and the grog consumption is few, and production cost is low, and technology is simple, and is easy to control, is well suited for industrialness production.
Table 1
Phosphorus slag % grog % high temperature gypsum % resistance to compression kg/cm
2Anti-folding kg/cm
2
3 days 7 days 28 days 3 days 7 days 28 days
90 10 327 505 750 47 63 91
10 80 10 294 484 700 41 60 86
20 70 10 278 440 701 45 63 92
30 60 10 230 412 703 40 63 96
40 50 10 194 393 695 31 61 103
50 40 10 142 326 719 28 55 101
60 30 10 97 261 683 20 46 99
70 20 10 61 214 699 15 45 99
80 10 10 31 195 696 9 43 90
95 5 512 626 729 79 86 96
Table 2
Sample grog % phosphorus slag % high temperature gypsum resistance to compression kg/cm
2Anti-folding kg/cm
2
% 3 days 7 days 28 days 3 days 7 days 28 days
L-1 10 85 5 31 141 698 7 33 102
L-2 15 80 5 45 201 587 10 46 96
L-3 20 75 5 54 233 608 11 53 102
L-4 10 80 10 34 165 715 9 40 96
L-5 15 75 10 34 134 600 9 30 88
Table 3
Sample phosphorus slag grog high temperature gypsum resistance to compression kg/cm
2Anti-folding kg/cm
2
% % % 3 days 7 days 28 days 3 days 7 days 28 days
Z-1 80 10 10 51 125 615 11 29 78
Z-2 80 10 10 30 125 742 9 23 85
Z-3 80 10 10 34 165 715 9 40 86
Z-4 80 10 10 31 195 696 9 43 84
Z-5 80 10 10 30 126 633 8 28 76
C-1 80 15 5 48 209 576 12 49 80
C-2 80 15 5 55 234 596 13 47 97
C-3 80 twenty 55 45 201 587 10 46 86
C-4 80 15 5 38 157 541 8 36 91
C-5 80 15 5 58 93 430 8 12 71
Table four
Sample phosphorus slag % grog % high temperature gypsum % time of coagulation (time: divide) stability
Initial set final set (boiling process)
H-1 80 15 10 3: 37 7: 32 is qualified
H-2 80 15 54: 48 11: 31 is qualified
Table five
Classification ash: sand: stone proportioning resistance to compression design resistance to compression cement cost/root
kg/cm
2kg/cm
2
300 300 17.00 yuan of Portland cements 1: 1.65: 1.85
300 300 10.75 yuan of low clinker phosphorous residue cements 1: 0.93: 1.07
Table six
10 mean value monolithics of classification value meets label (resistance to compression)
1 day intensity 15.3MPa 15.1MPa 150
#
Intensity 16.4MPa 15.8MPa 150 after 28 days
#
Claims (4)
1, a kind of is the low clinker phosphorous residue cement of major ingredient with the phosphorus slag, it is characterized in that: this phosphoric slag cement is the phosphorus slag by 75-85% (weight), the grog of 10-20% (weight), and the gypsum of 5-10% (weight) is formed.
2, according to the described low clinker phosphorous residue cement of claim 1, it is characterized in that: this phosphoric slag cement is by 80%(weight) phosphorus slag, 15%(weight) grog and 5%(weight) gypsum form.
3, according to the described low clinker phosphorous residue cement of claim 1, it is characterized in that: this phosphoric slag cement is by 80%(weight) phosphorus slag, 10%(weight) grog and 10%(weight) gypsum form.
4, according to the described low clinker phosphorous residue cement of claim 1-3, it is characterized in that: gypsum forms through 850-950 ℃ of calcining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107249 CN1008728B (en) | 1987-12-02 | 1987-12-02 | Low clinker phosphorous residue cement and its technology method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107249 CN1008728B (en) | 1987-12-02 | 1987-12-02 | Low clinker phosphorous residue cement and its technology method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033373A CN1033373A (en) | 1989-06-14 |
| CN1008728B true CN1008728B (en) | 1990-07-11 |
Family
ID=4816025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87107249 Expired CN1008728B (en) | 1987-12-02 | 1987-12-02 | Low clinker phosphorous residue cement and its technology method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008728B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047579C (en) * | 1991-12-25 | 1999-12-22 | 云南省建筑材料科学研究设计院 | Production method of special cement by use of electric furnace phosphoric slag |
| CN1044596C (en) * | 1992-05-07 | 1999-08-11 | 云南省建筑材料科学研究设计院 | Prodn. method for cement clinker by making use of electric furnace phosphorus slag and blast furnace slag |
| CN1047581C (en) * | 1992-11-24 | 1999-12-22 | 王育强 | Volcanic ash ardealite cement producing process |
| CN1055277C (en) * | 1998-10-01 | 2000-08-09 | 四川省绵竹市齐福水泥厂 | Prodn. of composite portland cement by utilizing industrial waste residue |
| CN102491655B (en) * | 2011-11-21 | 2013-06-12 | 武汉理工大学 | Portland cement made from self-pulverized clinker and slag and preparation method for Portland cement |
| CN105314953A (en) * | 2015-05-19 | 2016-02-10 | 葛洲坝集团水泥有限公司 | Ultralow-heat composite cementing material |
| CN109678371A (en) * | 2019-01-04 | 2019-04-26 | 铜陵上峰水泥股份有限公司 | A kind of phosphoric slag cement and its production technology |
-
1987
- 1987-12-02 CN CN 87107249 patent/CN1008728B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033373A (en) | 1989-06-14 |
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