CN101168266A - Method for producing concrete by reclaiming and reusing PHC pipe pile residual slurry - Google Patents
Method for producing concrete by reclaiming and reusing PHC pipe pile residual slurry Download PDFInfo
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- CN101168266A CN101168266A CNA2006101174241A CN200610117424A CN101168266A CN 101168266 A CN101168266 A CN 101168266A CN A2006101174241 A CNA2006101174241 A CN A2006101174241A CN 200610117424 A CN200610117424 A CN 200610117424A CN 101168266 A CN101168266 A CN 101168266A
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Abstract
The invention discloses a process for preparing concrete by recycling and utilizing PHC pile tube surplus slurry, which comprises collecting the surplus slurry produced by the centrifugation of the PHC pile tube in a ware, then calculating the proportion of the surplus slurry X and calculating solidity Y of the surplus slurry according to the mathematical formula Y=AX-B, and according to the solidity value of original surplus slurry, adding water into the surplus slurry for mixing and diluting into a fixed density or solidity, adding retarder into the surplus slurry and controlling the coagulation time of the surplus slurry in 4-6 hours, then adding the surplus slurry and the row material of commodity concrete into the blender for producing the mixture fitting for the relative strength gradation, and conducting commodity concrete production to the mixture with manufacturing technique of commodity concrete. The process for preparing concrete by recycling and utilizing PHC pile tube surplus slurry enables the effective components of the surplus slurry to be reutilized, which not only reduces the environmental contamination and saves resource, but also substantially improves both the service performance and the early strength and later strength of the produced commodity concrete.
Description
Technical field
The present invention relates to residual slurry of tubular pile and reclaim process, relate in particular to a kind of PHC of utilization residual slurry of tubular pile and produce concrete method.
Background technology
At present, PHC pile tube (super centrifugal high-strength prestressed concrete pipe pile) output is huge, and its production process as shown in Figure 1.
The raw material of PHC pile tube is cement, levigate sand or breeze, sand, rubble, and water and additive composition, and its concrete strength will reach more than the C80.In the PHC tubular pile production process, concrete material rotation at a high speed under centrifugal action during centrifugal forming, lamination appears in the thickness particle, a large amount of surplus pulp-waters of pile tube inwall emersion.The solid particle main component is a Binder Materials in the pulp-water.The processing method of present surplus slurry, the most frequently used practice are that surplus slurry is collected, and are used for landfill after to be dried.Because the main solid particle composition of surplus slurry is a Binder Materials, be alkalescence, so this method serious environment pollution has not only also caused the waste of resource.The processing method of another kind of surplus slurry is that surplus slurry is made into town road goods such as curb, pavior brick or makes air-entrained concrete building block etc.Though this method has solved problem of environmental pollution, and make refuse obtain utilizing, also have problems.At first, need to drop into new production line, purchase new production equipment, arrange certain labour, the initial stage drops into bigger; Secondly, even dropped into new production line, the output of surplus slurry can not satisfy the production needs.Also occurred in recent years residual slurry of tubular pile in residual slurry of tubular pile cyclic utilization method (to Chinese patents, publication number is CN1569427, the open date is on January 26th, 2005), put into again after just surplus slurry being reclaimed produce in the concrete that pile tube uses recycling.Though this kind method is comparatively practical in actual production, along with the increase of surplus slurry volume and the increase of cycle-index, bigger fluctuation can appear in the presentation quality of concrete strength and pile tube; Simultaneously, the mixing of surplus slurry also can change the distribution of particles of cement and levigate sand in the concrete, thereby causes that the ratio of mud changes; In addition, because the repeatedly accumulation of circulation back additive can cause surplus slurry proportion to increase, solid content increases very fast, and the moulding of pile tube inwall is bad.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of recycling PHC residual slurry of tubular pile and produces concrete method, can produce the standard compliant commerical ready-mixed concrete of intensity and workability.
In order to solve the problems of the technologies described above, the present invention recycles the PHC residual slurry of tubular pile and produces concrete method and comprise the steps:
(1) the surplus slurry that produces behind the PHC tubular pile centrifugal is collected into container;
(2) measure surplus slurry proportion X, and calculate surplus slurry solid content Y by following mathematical expression,
Y＝AX-B
Wherein, A, B are the measured parameter value of surplus slurry physical property;
(3), in surplus slurry, add the entry agitation and dilution to fixed concentration or solid content according to the value of former surplus slurry solid content;
(4) add set retarder in surplus slurry, be 4～6 hours the setting time of controlling surplus slurry;
(5) with the surplus slurry of step (4) with produce the concrete raw material of commodity and add mixer and stir into the compound that meets the respective strengths grade, the total amount and the former blended stock that add the additional Binder Materials of Binder Materials and needs in the surplus slurry are filled a prescription consistent;
(6) compound is carried out commerical ready-mixed concrete production by the commerical ready-mixed concrete manufacturing technique method.
Recycling PHC residual slurry of tubular pile of the present invention is produced concrete method, technology is simple, be easy to control, active ingredient in the surplus slurry is utilized again, not only reduce environmental pollution, economize on resources, and the service behaviour of the commerical ready-mixed concrete of producing and early stage, later strength all are improved significantly.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is existing PHC pile tube technological process of production figure;
Fig. 2 is that the present invention recycles the technological process of production figure that the PHC residual slurry of tubular pile is produced concrete method.
The specific embodiment
As shown in Figure 2, the present invention recycles the PHC residual slurry of tubular pile and produces concrete method and comprise the steps:
(1) the surplus slurry that produces behind the PHC tubular pile centrifugal is collected a fixed container, and be transferred to another have agitating device and graduation apparatus container;
(2) measure surplus slurry proportion, and calculate surplus slurry solid content by following mathematical expression,
Y＝AX-B
Wherein, A, B are the measured parameter value of surplus slurry physical property, and error is controlled within the specific limits, and Y is a surplus slurry solid content (%), and X is surplus slurry proportion (kg/m
3), mathematical expression between this surplus slurry solid content and the proportion, there is not significant change at normal temperatures and pressures, this mathematical expression is to obtain through a large amount of statistics, concrete grammar is for repeatedly taking by weighing the surplus slurry of fixed amount, and, taking by weighing the solids quality after the oven dry with it oven dry, the proportion that the solids quality after the oven dry accounts for former surplus slurry is surplus slurry solid content;
(3) simplification in order to operate according to the value of former solid content, adds the entry agitation and dilution to fixed concentration or solid content in surplus slurry;
(4) in surplus slurry, add set retarder, control surplus slurry setting time at 4～6 hours;
(5) with the surplus slurry (concentration fixed) of step (4) with produce the concrete raw material of commodity and add mixer and stir into the compound that meets respective strengths grade (as the C30 strength grade), the total amount and the former blended stock that add the additional Binder Materials of Binder Materials and needs in the surplus slurry are filled a prescription consistent;
(6) compound is carried out commerical ready-mixed concrete production by the commerical ready-mixed concrete manufacturing technique method.
In the described step (1), after surplus slurry is collected into container, transferring to another container that has agitating device and graduation apparatus dilutes, this container that is used to dilute surplus slurry must have agitating device, to avoid Binder Materials premature set, layering in the surplus slurry to occur precipitation then, guarantee the pipeline pumping of surplus slurry.
In described step (2) and (3), the relation of surplus slurry solid content and proportion need be through for a long time statistics and checking repeatedly, and surplus slurry is diluted to fixed concentration, is for production process is oversimplified, and particular concentration is convenient to pumping and metering.
Described step (1)～(3) used time is no more than 1 hour, and the used time of step (1) was controlled in 15 minutes.
In the described step (4), set retarder comprises sugared calcium, gluconic acid sodium salt and cellulose ether, it mixes must be according to the actual production of commerical ready-mixed concrete and client to the demand of commerical ready-mixed concrete and decide, general volume is between 0.06%～0.12%, can determine according to the set retarder type, be as the criterion setting time, control surplus slurry setting time at 4～6 hours with surplus slurry, to consider the influence of seasonal variations simultaneously, to avoid premature set or setting time oversize to concrete coagulating time.
In one embodiment of the invention, initial production process (see figure 1) adds mixer with the raw material of producing the PHC pile tube by the prescription consumption of PHC pile tube and stirs and obtain tubular pile concrete.Finish the production of PHC pile tube through processes such as concrete casting, prestressed, reinforced stretch-draw, centrifugal forming, maintenance, the demouldings.The pile tube inwall produces surplus slurry in the centrifugal forming process, by driving pile tube colluded extension after, surplus slurry is poured onto fixed container.By go-cart fresh surplus slurry is transferred to the Container that has mixing plant and scale sign rapidly then, thin up to fixed concentration or solid content is 30%.Influence pumping and use in order to prevent in surplus slurry layering, the surplus slurry Binder Materials to condense, the agitator slurry beginning of should having a surplus in the container is worked always.In the dilution, the concentration of surplus slurry can obtain indirectly by measuring its density.According to density of measuring by a large amount of statistical tests and the corresponding relation mathematical expression Y=AX-B between the solid content, can draw the solid content of initial surplus slurry, in this mathematical expression, A=0.0689, B=49.9, X are the surplus slurry proportion (kg/m that records
3), Y is a surplus slurry solid content (%) to be asked.
The water consumption that needs to add is determined by following formula:
Wherein, initial surplus slurry amount can obtain by the scale sign on the agitator.During thin up, preprepared set retarder is together added.
Deployed surplus slurry is carried by the pump line road or is transported in the former feed bin of facilities of mix storied building with car, wherein, the mode of production that the adding of surplus slurry takes concrete admixture to join concrete batching and mixing tower is carried out, and sends in the mixer after measuring by producing concrete prescription requirement then.Metering is undertaken by the batch box of band weighing system, and the surplus slurry in the surplus slurry bucket is squeezed into batch box with pump, directly surplus slurry is joined in the mixer then.
Because the difference of producing negative what fluctuation and producing the required prescription of product of different size for the simplification that guarantees to operate, only joins surplus slurry in the commerical ready-mixed concrete raw material that strength grade of concrete is C30.Binder Materials in the surplus slurry that adds accounts for the amount of total Binder Materials is undertaken by the principle that equivalent replaces, and the Binder Materials equivalent in the promptly surplus slurry replaces the amount of the used Binder Materials of commerical ready-mixed concrete when not mixing surplus slurry.Though contain the impurity of minute quantity in the surplus slurry, because the pile tube concrete admixture is a super plasticizer, this makes the workability of commerical ready-mixed concrete and early stage, later strength all obtain effective improvement.
Should control the continous-stable of production line in the production process, residual slurry of tubular pile is fully used, can reduce again because of producing the accident that fluctuation causes.But production unit should be prepared a cover emergency measure in advance, to deal with the problem that occurs surplus slurry quantity not sufficient in surplus slurry application process.
It should be noted that, owing to have more fine grain Binder Materials in the surplus slurry, more easily attach to pipeline and container inner wall, when stopping using, should in time clean surplus slurry agitator, bucket and conveyance conduit, stick to bucket or inner-walls of duct after avoiding surplus slurry dry and hard, reduce the service life and the production efficiency of equipment.
Claims (8)
1. a recycling PHC residual slurry of tubular pile is produced concrete method, it is characterized in that, comprises the steps:
(1) the surplus slurry that produces behind the PHC tubular pile centrifugal is collected into container;
(2) measure surplus slurry proportion X, and calculate surplus slurry solid content Y by following mathematical expression,
Y＝AX-B
Wherein, A, B are the measured parameter value of surplus slurry physical property;
(3), in surplus slurry, add the entry agitation and dilution to fixed concentration or solid content according to the value of former surplus slurry solid content;
(4) add set retarder in surplus slurry, be 4～6 hours the setting time of controlling surplus slurry;
(5) with the surplus slurry of step (4) with produce the concrete raw material of commodity and add mixer and stir into the compound that meets the respective strengths grade, the total amount and the former blended stock that add the additional Binder Materials of Binder Materials and needs in the surplus slurry are filled a prescription consistent;
(6) compound is carried out commerical ready-mixed concrete production by the commerical ready-mixed concrete manufacturing technique method.
2. the method for claim 1 is characterized in that, step (1)～(3) used time is no more than 1 hour, and the used time of step (1) was controlled in 15 minutes.
3. the method for claim 1 is characterized in that, after the described surplus slurry of step (1) is collected into container, transfers to the container that another has agitating device and graduation apparatus.
4. as claim 1 or 3 described methods, it is characterized in that being diluted in another container after the transfer of surplus slurry carried out in the step (3).
5. the method for claim 1 is characterized in that, the surplus slurry fixed concentration in the step (3) after the dilution is 30%.
6. the method for claim 1 is characterized in that, the described set retarder of step (4) comprises sugared calcium, gluconic acid sodium salt and cellulose ether.
7. the method for claim 1 is characterized in that, the concentration of the described set retarder of step (4) in surplus slurry is 0.06%～0.12%.
8. the method for claim 1 is characterized in that, the mode of production that the adding of surplus slurry takes concrete admixture to join concrete batching and mixing tower in the step (5) is carried out.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101174241A CN101168266A (en) | 2006-10-23 | 2006-10-23 | Method for producing concrete by reclaiming and reusing PHC pipe pile residual slurry |
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| CNA2006101174241A CN101168266A (en) | 2006-10-23 | 2006-10-23 | Method for producing concrete by reclaiming and reusing PHC pipe pile residual slurry |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875211A (en) * | 2010-04-21 | 2010-11-03 | 宁波市镇海永恒建材厂 | Method for producing concrete brick by using residual slurry of tubular pile |
| CN103641400A (en) * | 2013-11-25 | 2014-03-19 | 江苏东浦管桩有限公司 | Energy-saving low-carbon method for producing tubular pile |
| CN103803902A (en) * | 2013-12-25 | 2014-05-21 | 邱寒冰 | Building material and fabrication method thereof |
| CN104045279A (en) * | 2014-07-04 | 2014-09-17 | 四川华构住宅工业有限公司 | Method for preparing novel lightweight trench cover from surplus paste in production of pipe piles |
| CN106079071A (en) * | 2016-06-27 | 2016-11-09 | 湖北昌耀新材料股份有限公司 | A kind of recycling method of remaining slurry in tubulose cement concrete product |
| CN106217641A (en) * | 2016-09-08 | 2016-12-14 | 德翰智慧科技有限公司 | Method for preparing environment-friendly building material by using residual cement paste in prestressed concrete pipe pile manufacturing process |
| CN106607994A (en) * | 2015-10-26 | 2017-05-03 | 宁波金美亚池州管桩有限公司 | Waste material recovery and stirring system |
| CN108177238A (en) * | 2017-12-29 | 2018-06-19 | 汤始建华建材（上海）有限公司 | Mix the system of remaining slurry production sand autoclave aerated concrete building block |
| CN109231901A (en) * | 2018-10-11 | 2019-01-18 | 十九冶成都建设有限公司 | High titanium type blast furnace slag concrete floating slurry recycling method |
| CN109400017A (en) * | 2018-10-08 | 2019-03-01 | 江门市新会华源管桩有限公司 | A method of enhancing residual slurry of tubular pile mobility |
| CN109574583A (en) * | 2018-11-19 | 2019-04-05 | 青岛崇置混凝土工程有限公司 | A kind of high-strength concrete and preparation method thereof |
| CN112694308A (en) * | 2020-12-31 | 2021-04-23 | 陕西凝远新材料科技股份有限公司 | Process for producing aerated concrete by using waste slurry generated by tubular pile |
| CN113003627A (en) * | 2021-03-05 | 2021-06-22 | 韶关挖掘机制造厂有限公司 | Concrete sewage recovery treatment system and method |
| CN113306021A (en) * | 2021-04-09 | 2021-08-27 | 江苏建华新型墙材有限公司 | Residual slurry recycling device and method for laminated slab |
| CN115008615A (en) * | 2022-07-04 | 2022-09-06 | 朱东敏 | Integrated production line for field mixing and construction for preparing green (ultra) high-performance concrete |
-
2006
- 2006-10-23 CN CNA2006101174241A patent/CN101168266A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875211B (en) * | 2010-04-21 | 2012-11-28 | 宁波市镇海永恒建材厂 | Method for producing concrete brick by using residual slurry of tubular pile |
| CN101875211A (en) * | 2010-04-21 | 2010-11-03 | 宁波市镇海永恒建材厂 | Method for producing concrete brick by using residual slurry of tubular pile |
| CN103641400A (en) * | 2013-11-25 | 2014-03-19 | 江苏东浦管桩有限公司 | Energy-saving low-carbon method for producing tubular pile |
| CN103803902A (en) * | 2013-12-25 | 2014-05-21 | 邱寒冰 | Building material and fabrication method thereof |
| CN104045279A (en) * | 2014-07-04 | 2014-09-17 | 四川华构住宅工业有限公司 | Method for preparing novel lightweight trench cover from surplus paste in production of pipe piles |
| CN104045279B (en) * | 2014-07-04 | 2016-08-17 | 四川华构住宅工业有限公司 | Utilize the method that residual slurry of tubular pile prepares novel light trench cover |
| CN106607994A (en) * | 2015-10-26 | 2017-05-03 | 宁波金美亚池州管桩有限公司 | Waste material recovery and stirring system |
| CN106079071B (en) * | 2016-06-27 | 2018-12-21 | 湖北昌耀新材料股份有限公司 | A kind of recycling and reusing method of remaining slurry in tubulose cement concrete product |
| CN106079071A (en) * | 2016-06-27 | 2016-11-09 | 湖北昌耀新材料股份有限公司 | A kind of recycling method of remaining slurry in tubulose cement concrete product |
| CN106217641A (en) * | 2016-09-08 | 2016-12-14 | 德翰智慧科技有限公司 | Method for preparing environment-friendly building material by using residual cement paste in prestressed concrete pipe pile manufacturing process |
| CN108177238A (en) * | 2017-12-29 | 2018-06-19 | 汤始建华建材（上海）有限公司 | Mix the system of remaining slurry production sand autoclave aerated concrete building block |
| CN109400017A (en) * | 2018-10-08 | 2019-03-01 | 江门市新会华源管桩有限公司 | A method of enhancing residual slurry of tubular pile mobility |
| CN109231901A (en) * | 2018-10-11 | 2019-01-18 | 十九冶成都建设有限公司 | High titanium type blast furnace slag concrete floating slurry recycling method |
| CN109231901B (en) * | 2018-10-11 | 2021-03-19 | 十九冶成都建设有限公司 | High titanium type blast furnace slag concrete floating slurry recycling method |
| CN109574583B (en) * | 2018-11-19 | 2021-03-05 | 青岛崇置混凝土工程有限公司 | High-strength concrete and preparation method thereof |
| CN109574583A (en) * | 2018-11-19 | 2019-04-05 | 青岛崇置混凝土工程有限公司 | A kind of high-strength concrete and preparation method thereof |
| CN112694308A (en) * | 2020-12-31 | 2021-04-23 | 陕西凝远新材料科技股份有限公司 | Process for producing aerated concrete by using waste slurry generated by tubular pile |
| CN113003627A (en) * | 2021-03-05 | 2021-06-22 | 韶关挖掘机制造厂有限公司 | Concrete sewage recovery treatment system and method |
| CN113003627B (en) * | 2021-03-05 | 2021-12-24 | 韶关挖掘机制造厂有限公司 | Concrete sewage recovery treatment system and method |
| CN113306021A (en) * | 2021-04-09 | 2021-08-27 | 江苏建华新型墙材有限公司 | Residual slurry recycling device and method for laminated slab |
| CN115008615A (en) * | 2022-07-04 | 2022-09-06 | 朱东敏 | Integrated production line for field mixing and construction for preparing green (ultra) high-performance concrete |
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