CN104139459A - Nuclear power dedicated grout mixing technology - Google Patents
Nuclear power dedicated grout mixing technology Download PDFInfo
- Publication number
- CN104139459A CN104139459A CN201310167836.6A CN201310167836A CN104139459A CN 104139459 A CN104139459 A CN 104139459A CN 201310167836 A CN201310167836 A CN 201310167836A CN 104139459 A CN104139459 A CN 104139459A
- Authority
- CN
- China
- Prior art keywords
- mixing
- slurry
- grouting
- mud
- grout
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
- B28C5/006—Methods for mixing involving mechanical aspects
Abstract
The invention relates to a nuclear power dedicated grout mixing technology which comprises the following steps: 1, the optimum water cement ratio is determined: water cement ratio within the range of 0.15-0.25 is selected, and the optimum water cement ratio is obtained according to maximum fluidity, maximum compressive strength and minimum shrinkage test; 2, mixing volume and mixing water content are determined: specifically, mixing water is added into a mixing plant according to the optimum water cement ratio A determined in the step 1 and according to the required mixing volume B m<3>; 3, mixing speed and time are determined: mixing speed of the mixing plant is controlled to 500-800 r/s, a grout is added, and mixing is continuously carried out for 1-2 min after the grout is added and rapidly dispersed; and mixing speed is raised to 1200-1500 r/s, and mixing is carried out for 2-3 min; and 4, a grout preparation test is carried out to finally finish the grout preparation technology. According to the invention, problems of slow manual feeding and the like are solved; efficacy is raised; construction difficulty caused by secondary mixing is avoided; and construction efficiency is improved.
Description
Technical field
The present invention relates to a kind of grouting stirring technique, be specifically related to the special-purpose grouting material stirring technique of a kind of nuclear power.
Background technology
Nuclear power engineering nuclear island need to be built grouting material, and for guaranteeing good mobility and fillibility and the compensating concrete self-constriction of grouting material, the on-the-spot grouting equipment that must adopt is pumped to grouting material the position that needs filling in time.During due to construction, be subject to the restriction of stirring technique, the stirring of grouting material lacks a set of complete and continuous technological process always, the common low speed constant speed mortar mixer that therefore can only first adopt when actual slurrying, and then the pulping process of this backwardness of secondary agitation completes.By applicable cases evaluation analysis the method, have the following disadvantages:
(1) amount of agitation is few, and a general amount of agitation only has 0.15m
3;
(2) secondary agitation slurry effect artifical influence factor is large, to quality control, has increased difficulty;
(3) original stirring technique length consuming time, expects that from above slurrying completes needs 30 minutes, and the preparation of construction time is long, and manpower and materials have high input, and cost is high.
For solve the on-the-spot grouting of nuclear power stirring technique effect slow, expend greatly, be affected by human factors the problems such as large, urgently a kind of new slurrying stirring technique.
Summary of the invention
The technical problem that will solve of the present invention is to provide a kind of on-the-spot grouting material stirring technique that improves the on-the-spot grouting material stirring efficiency of nuclear power engineering.
In order to solve the problems of the technologies described above, technical scheme of the present invention is that the special-purpose grouting of a kind of nuclear power stirring technique, comprises the following steps:
Step 1, determine the best ratio of mud
Between 0.15-0.25, select the ratio of mud, maximum according to fluidity, compression strength is maximum and shrinkage test is minimum, and then to obtain the best ratio of mud be A;
Step 2, definite stirring side amount and batched water
Described step 2 is specially the best ratio of mud A determining according to step 1, and according to required stirring side amount B m
3, in mixing plant, add mixing water,
Step 3, determine mixing speed and time
Control the mixing speed of mixing plant between 500-800 revolutions per second, then start to add grouting material, after grouting material is added and scatter fast, continue to stir 1-2 minute; Improve mixing speed to 1200-1500 revolutions per second, and stir 2-3 minute;
Step 4, carry out pulp-making test detection, finally complete grouting material preparation technology
1, detect slurry fluidity, slurry divergence, slurry compression strength, the slurry expansion character of 1 day;
2, when slurry fluidity >=260mm, slurry divergence >=650mm, slurry compression strength >=55Mpa, slurry expansion character >=0.02% of 1 day, slurrying is qualified, completes grouting stirring technique.
Described B is 0.8-1.2m
3.
Beneficial effect of the present invention:
(1) the invention solves the problems such as original pulping process complexity is loaded down with trivial details, and mixing time is long, needs mixer many, and hand stock is slow;
(2) one tank slurries shorten greatly from being fed to the successful time of slurrying, have improved effect;
(3) can a slurrying complete less mixing time, the constructional difficulties of avoiding secondary agitation to bring;
(4) whole pulping process is uninterrupted continuously, and controllability simple to operate is strong, and mixing time is short, and effect is high, has improved the efficiency of construction when saving grouting material mixing time;
(5) slurry properties all meets site pumping requirement, and stable performance, and slurry quality is guaranteed.
the specific embodiment
Following examples are described further the present invention.
The special-purpose grouting of a kind of nuclear power of the present invention stirring technique, comprises the following steps:
Step 1, determine the best ratio of mud;
Step 2, selection stirring side amount and batched water;
Step 3, determine mixing speed and time;
Step 4, carry out pulp-making test detection, finally complete grouting material preparation technology;
Described step 1 is specially and between 0.15-0.25, selects the ratio of mud, maximum according to fluidity, compression strength is maximum and shrinkage test is minimum, and then to obtain the best ratio of mud be A;
Described step 2 is specially the best ratio of mud A determining according to step 1, and according to required stirring side amount B m
3, in mixing plant, add mixing water,
wherein B can elect 0.8m as
3, 0.9m
3, 1.2m
3;
Described step 3 is specially the mixing speed of control mixing plant between 500-800 revolutions per second, then starts to add grouting material, after grouting material is added and scatter fast, continues to stir 1-2 minute; Improve mixing speed to 1200-1500 revolutions per second, and stir 2-3 minute;
Described step 4 is specially carries out slurry test and detects, and comprises and detects slurry fluidity, slurry divergence, slurry compression strength, the slurry expansion character of 1 day; When slurry fluidity >=260mm, slurry divergence >=650mm, slurry compression strength >=55Mpa, slurry expansion character >=0.02% of 1 day, slurrying is qualified, completes grouting stirring technique.
Claims (2)
1. the special-purpose grouting of a nuclear power stirring technique, is characterized in that: comprise the following steps:
Step 1, determine the best ratio of mud
Between 0.15-0.25, select the ratio of mud, maximum according to fluidity, compression strength is maximum and shrinkage test is minimum, and then to obtain the best ratio of mud be A;
Step 2, definite stirring side amount and batched water
Described step 2 is specially the best ratio of mud A determining according to step 1, and according to required stirring side amount B m
3, in mixing plant, add mixing water,
Step 3, determine mixing speed and time
Control the mixing speed of mixing plant between 500-800 revolutions per second, then start to add grouting material, after grouting material is added and scatter fast, continue to stir 1-2 minute; Improve mixing speed to 1200-1500 revolutions per second, and stir 2-3 minute;
Step 4, carry out pulp-making test detection, finally complete grouting material preparation technology
1, detect slurry fluidity, slurry divergence, slurry compression strength, the slurry expansion character of 1 day;
2, when slurry fluidity >=260mm, slurry divergence >=650mm, slurry compression strength >=55Mpa, slurry expansion character >=0.02% of 1 day, slurrying is qualified, completes grouting stirring technique.
2. according to the special-purpose grouting of nuclear power claimed in claim 1 stirring technique, it is characterized in that: described B is 0.8-1.2m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167836.6A CN104139459B (en) | 2013-05-08 | 2013-05-08 | A kind of special grouting stirring technique of nuclear power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167836.6A CN104139459B (en) | 2013-05-08 | 2013-05-08 | A kind of special grouting stirring technique of nuclear power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104139459A true CN104139459A (en) | 2014-11-12 |
| CN104139459B CN104139459B (en) | 2016-07-13 |
Family
ID=51848872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310167836.6A Active CN104139459B (en) | 2013-05-08 | 2013-05-08 | A kind of special grouting stirring technique of nuclear power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104139459B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022116526A1 (en) * | 2020-12-02 | 2022-06-09 | 中广核工程有限公司 | Expansion grout for prestressed pipeline grouting and preparation method therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202088302U (en) * | 2011-01-20 | 2011-12-28 | 中广核工程有限公司 | Nuclear power engineering concrete production system |
| DE202011109132U1 (en) * | 2011-12-16 | 2012-01-12 | Westinghouse Electric Germany Gmbh | Stirring tool and stirrer |
| CN202480238U (en) * | 2012-01-18 | 2012-10-10 | 中国核工业华兴建设有限公司 | Cement pulping device |
-
2013
- 2013-05-08 CN CN201310167836.6A patent/CN104139459B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202088302U (en) * | 2011-01-20 | 2011-12-28 | 中广核工程有限公司 | Nuclear power engineering concrete production system |
| DE202011109132U1 (en) * | 2011-12-16 | 2012-01-12 | Westinghouse Electric Germany Gmbh | Stirring tool and stirrer |
| CN202480238U (en) * | 2012-01-18 | 2012-10-10 | 中国核工业华兴建设有限公司 | Cement pulping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022116526A1 (en) * | 2020-12-02 | 2022-06-09 | 中广核工程有限公司 | Expansion grout for prestressed pipeline grouting and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104139459B (en) | 2016-07-13 |
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