CN105315962A - Cement gum for lap joint of geosynthetic clay liner and preparing method of cement gum - Google Patents
Cement gum for lap joint of geosynthetic clay liner and preparing method of cement gum Download PDFInfo
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- CN105315962A CN105315962A CN201410853397.9A CN201410853397A CN105315962A CN 105315962 A CN105315962 A CN 105315962A CN 201410853397 A CN201410853397 A CN 201410853397A CN 105315962 A CN105315962 A CN 105315962A
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- clay
- overlap joint
- cement gum
- sodium bentonite
- petroleum pitch
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Abstract
The invention relates to the technical field of soil engineering materials, in particular to bentonite cement gum and a preparing method thereof. The preparing method of the cement gum for lap joint of a geosynthetic clay liner comprises the following steps that petroleum asphalt is emulsified through an emulsifying agent, then the petroleum asphalt, sodium bentonite and plasticizer are mixed through a high-speed shearing machine at the speed of 280 turns per minute for 30 minutes in a reaction vessel at the high temperature of 180 DEG C, semi-solid black cement gum is formed after the raw materials react and are fused, the semi-solid black cement gum is cooled and charged into a gum barrel to be sealed, and the bentonite cement gum is prepared. By means of the technical scheme, the prepared bentonite cement gum is high in stickness and not prone to suncrack or peeling after being smeared, and the geosynthetic clay liner has better waterproof and seepage-proof effects.
Description
Technical field
The present invention relates to earth working material technical field, particularly relate to a kind of wilkinite clay and preparation method thereof.
Background technology
What in current industry, the process of GCL overlap joint adopted usually is the wilkinite clay that bentonite clay particle and water are prepared out by a certain percentage.This clay needs situ configuration, and needs to be finished as early as possible, otherwise clay will become dry firmly, cannot continue to use.In addition, this clay is easy to dehydration and causes phenomenon that is dry and cracked, that come off after smearing, directly have influence on the waterproof, seepage control effect of GCL.
Summary of the invention
The object of the invention is to, provide a kind of GCL overlap joint clay, to solve the problems of the technologies described above.
Another object of the present invention is to, provide a kind of preparation method of GCL overlap joint clay, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
GCL overlap joint clay, adopts the raw material of following weight percent to make:
Petroleum pitch 40% ~ 60%;
Emulsifying agent 20% ~ 40%;
Sodium bentonite 15% ~ 18%;
Softening agent 2% ~ 5%.
The preparation method of GCL overlap joint clay, comprises the steps:
After adopting emulsifying agent that petroleum pitch is carried out emulsion reaction, add sodium bentonite, softening agent, and in reaction vessel, use shears mix, after raw material reaction is fused, form the clay of semi-solid black, load the sealing of glue bucket after cooling, namely make wilkinite clay of the present invention.
When wilkinite clay of the present invention uses, opening glue bucket can use.After the present invention adopts above-mentioned technique, wilkinite clay has stronger viscosity, and the overlap joint of waterproof blanket can be allowed more firm.Also have flexibility, can well combine with waterproof blanket, adapting to the non-uniform settling of ground, is that water resistance is more lasting simultaneously.
The preferred petroleum pitch of the present invention is after emulsifier, with sodium bentonite, softening agent in the reaction vessel of high temperature 180 DEG C, use high-speed shearing machine with the speed mix 30 minutes of per minute 280 turns, after raw material reaction is fused, form the clay of semi-solid black, load the sealing of glue bucket after cooling, namely make wilkinite clay of the present invention.
The proportioning that above-mentioned raw materials adopts is: petroleum pitch 40% ~ 60%, emulsifying agent 20% ~ 40%, sodium bentonite 15% ~ 18%, softening agent 2% ~ 5%.
Above-mentioned raw materials optimum ratio is: petroleum pitch 50%, emulsifying agent 30%, sodium bentonite 15%, softening agent 5%.
Beneficial effect: owing to adopting technique scheme, the wilkinite clay viscosity that the present invention makes is strong, after clay is smeared, dry and cracked, obscission can not occur, make GCL have better waterproof, seepage control effect.
Accompanying drawing explanation
Fig. 1 is a kind of result of use figure of the embodiment of the present invention 1;
Fig. 2 is a kind of result of use figure of the embodiment of the present invention 2.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
GCL overlap joint clay, adopts the raw material of following weight percent to make: petroleum pitch 40% ~ 60%, emulsifying agent 20% ~ 40%, sodium bentonite 15% ~ 18%, softening agent 2% ~ 5%.The raw material of the following weight percent of preferred employing is made: petroleum pitch 50%, emulsifying agent 30%, sodium bentonite 15%, softening agent 5%.
The preparation method of GCL overlap joint clay, get the raw material of said ratio, adopt following steps: after adopting the emulsifying agent of 20% ~ 40% that the petroleum pitch of 40% ~ 60% is carried out emulsion reaction, add the sodium bentonite of 15% ~ 18%, the softening agent of 2% ~ 5%, in the reaction vessel of high temperature 180 DEG C, use high-speed shearing machine with the speed mix 30 minutes of per minute 280 turns, after raw material reaction is fused, form the clay of semi-solid black, load the sealing of glue bucket after cooling, namely make wilkinite clay of the present invention.When wilkinite clay of the present invention uses, opening glue bucket can use.After the present invention adopts above-mentioned technique, wilkinite clay has stronger viscosity, and the overlap joint of waterproof blanket can be allowed more firm.Also have flexibility, can well combine with waterproof blanket, adapting to the non-uniform settling of ground, is that water resistance is more lasting simultaneously.
Use wilkinite clay of the present invention, not only make the integral waterproofing effect of waterproof blanket be improved, and improve efficiency.In the past with traditional wilkinite clay, 1 people can only smear the overlap joint of 500 square area for 1 hour.Now with wilkinite clay of the present invention, 1 people 20 minutes just can complete.In addition, this product does not pollute environment, has dissemination.
Embodiment 1:
With reference to Fig. 1, when the present invention uses, open glue bucket sealing cover, directly wilkinite clay 1 is spread upon the lap-joint of waterproof blanket 2 with the scraper plates of long 20 centimeters, wide 4 centimeters, the width smeared is 2.5 centimeters, every limit, and thickness is 0.5 centimeter, along overlap joint mouth uniform application to end.
Embodiment 2:
With reference to Fig. 2, waterproof blanket is completed rear the superincumbent waterproof blanket 2 of overlap joint and is turned back 10 centimeters, 2 centimeters, the edge place of waterproof blanket 2 below overlapping, directly wilkinite clay 1 is spread upon edge with length 20 centimeters, wide 4 centimeters of scraper plates, the width smeared is 5 centimeters, thickness is 0.5 centimeter, then along 2 centimeters, waterproof blanket 2 edge place uniform application to end, overlaps the waterproof blanket 2 turned back is turned back direct compacting.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. GCL overlap joint clay, is characterized in that, adopts the raw material of following weight percent to make:
Petroleum pitch 40% ~ 60%;
Emulsifying agent 20% ~ 40%;
Sodium bentonite 15% ~ 18%;
Softening agent 2% ~ 5%.
2. GCL overlap joint clay according to claim 1, is characterized in that, adopts the raw material of following weight percent to make: petroleum pitch 50%, emulsifying agent 30%, sodium bentonite 15%, softening agent 5%.
3. the preparation method of the GCL overlap joint clay described in manufacturing claims 1, is characterized in that, comprise the steps:
After adopting emulsifying agent that petroleum pitch is carried out emulsion reaction, add sodium bentonite, softening agent, and in reaction vessel, use shears mix, after raw material reaction is fused, form the clay of semi-solid black, load the sealing of glue bucket after cooling, namely make wilkinite clay of the present invention.
4. the preparation method of GCL overlap joint clay according to claim 3, it is characterized in that, petroleum pitch is after emulsifier, with sodium bentonite, softening agent in the reaction vessel of high temperature 180 DEG C, use high-speed shearing machine with the speed mix 30 minutes of per minute 280 turns, after raw material reaction is fused, form the clay of semi-solid black, load the sealing of glue bucket after cooling, namely make wilkinite clay of the present invention.
5. the preparation method of the GCL overlap joint clay according to claim 3 or 4, is characterized in that, the proportioning that above-mentioned raw materials adopts is:
Petroleum pitch 40% ~ 60%;
Emulsifying agent 20% ~ 40%;
Sodium bentonite 15% ~ 18%;
Softening agent 2% ~ 5%.
6. the preparation method of GCL overlap joint clay according to claim 5, is characterized in that, the proportioning that above-mentioned raw materials adopts is: petroleum pitch 50%, emulsifying agent 30%, sodium bentonite 15%, softening agent 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853397.9A CN105315962B (en) | 2014-12-31 | 2014-12-31 | Bentonite waterproof blanket overlap joint clay and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853397.9A CN105315962B (en) | 2014-12-31 | 2014-12-31 | Bentonite waterproof blanket overlap joint clay and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105315962A true CN105315962A (en) | 2016-02-10 |
| CN105315962B CN105315962B (en) | 2018-09-25 |
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| CN201410853397.9A Active CN105315962B (en) | 2014-12-31 | 2014-12-31 | Bentonite waterproof blanket overlap joint clay and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321202A (en) * | 2018-07-23 | 2019-02-12 | 安徽中路工程材料有限公司 | Bentonite waterproof blanket overlap joint uses clay |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031001A (en) * | 2010-12-09 | 2011-04-27 | 辽宁省交通科学研究院 | Road bentonite-based emulsified asphalt and preparation method thereof |
| CN102675890A (en) * | 2012-05-23 | 2012-09-19 | 长安大学 | Demulsifying slow breaking and quick setting modified emulsified asphalt by microwave heating and preparation method thereof |
-
2014
- 2014-12-31 CN CN201410853397.9A patent/CN105315962B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031001A (en) * | 2010-12-09 | 2011-04-27 | 辽宁省交通科学研究院 | Road bentonite-based emulsified asphalt and preparation method thereof |
| CN102675890A (en) * | 2012-05-23 | 2012-09-19 | 长安大学 | Demulsifying slow breaking and quick setting modified emulsified asphalt by microwave heating and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321202A (en) * | 2018-07-23 | 2019-02-12 | 安徽中路工程材料有限公司 | Bentonite waterproof blanket overlap joint uses clay |
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| CN105315962B (en) | 2018-09-25 |
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