CN1068898C - Utilization of waste causticized sand sludge - Google Patents
Utilization of waste causticized sand sludge Download PDFInfo
- Publication number
- CN1068898C CN1068898C CN98100857A CN98100857A CN1068898C CN 1068898 C CN1068898 C CN 1068898C CN 98100857 A CN98100857 A CN 98100857A CN 98100857 A CN98100857 A CN 98100857A CN 1068898 C CN1068898 C CN 1068898C
- Authority
- CN
- China
- Prior art keywords
- sand
- waste
- present
- causticized
- utilization
- 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.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to the utilization of waste caustic sand sludge in basic preparation industry. Caustic sand is used as a lime soil raw material of a highway bed to be blended into lime soil, and blending quantity is smaller than 25%. The simple and easy utilization approach for the waste caustic sand sludge is found out by the present invention so that the stacking problem of caustic sand is solved, and environment is protected against pollution. The manufacturing cost of the highway bed is greatly reduced, and the present invention has obvious economical and social benefits.
Description
The invention belongs to the utilization of waste residue, more particularly, is that the waste residue of discharging during industrial soda is produced---causticization sand is as the dirt raw material of highway road surface.
In basic industry, to give off a large amount of waste residues, it is fully utilized existing many reports, propose solvay soda process calcined soda waste residue producing engineering soil, CN89108216 solvay soda process waste residue system cement as CN1140151A.Adopt causticizing process to be processed into caustic soda in the processing of the many regional urao of China.The principle of causticization legal system caustic soda is that yellow soda ash and the calcium hydroxide reaction in the urao generates sodium hydroxide, but will give off a large amount of waste residues equally in this method production process---lime mud, causticization sand, wherein causticization sand does not also find the suitable approach that utilizes.In causticization sand, contain a certain amount of yellow soda ash and residual alkali of sodium hydroxide of comprising, the long-time accumulation, the farmland of alkalizing, contaminate environment if this problem can not get solving, is related to the development of basic industry.
Purpose of the present invention just provides a kind of approach that utilizes of waste causticized sand sludge.
Main technical schemes of the present invention: be in highway subgrade ash earth material, to infiltrate a certain amount of causticization sand.
The weight percentage of highway subgrade dirt material formula of the present invention:
Naturally native 65-70%, causticization sand 20-25%, sand 5%, lime 5-6%.
Naturally the plasticity index of soil of the present invention is 17-20, and the soil block in the soil should be less than 5mm.
Lime quality of the present invention meets the standard of the III level unslaked lime of GB1594-97 regulation.
Waste causticized sand sludge of the present invention self is loose, does not need pre-treatment, directly utilizes.The major ingredient of general causticization sand: lime carbonate about 39%, calcium hydroxide, calcium oxide and magnesium oxide account for 16.1%, sand 26%, water 18-20%, alkali (comprise Na
2CO
3, NaOH) account for about 2.1%, the incorporation of causticization sand should guarantee roadbed not the accumulation of salt in the surface soil be advisable.
The causticization sand that the present invention uses is the waste residue that Henan Oil Field alkali company causticizing process alkali producing process is discharged, the maximum 10mm of granularity, more than 90%≤and 5mm, therefore only need sieve to go the small part rubble to get final product.
Dirt fusion method of the present invention: adopt machinery or manual method fusion evenly can use in nature soil, causticization sand, sand and lime in given ratio.
Dirt constructional method of the present invention adopts common the simplest on-the-spot road-mix method construction, and causticization sand, sand, dirt are mixed evenly at base soil layer stand, road surface in proportion.
Main advantage of the present invention: found a kind of comprehensive Utilization Ways of waste causticized sand sludge, solved causticization sand and stacked problem, also protected environment not contaminated simultaneously; Owing to admix a certain amount of waste residue in the dirt, can reduce the cost cost of highway subgrade greatly, about every kilometer can be reduced about 150,000 yuan, so the existing remarkable economic efficiency of the present invention, has important social benefit again.And method is simple, is easy to apply.
Embodiment
With the plasticity index of 70kg be 19, soil, the granularity naturally of the Nanyang Prefecture of granularity＜15mm stir by common stirrer less than 5mm causticization sand 20kg, lime 5kg, sand 5kg, promptly obtains the dirt that adheres to specification.
This dirt is after tested: the ultimate compression strength in 96%, the 7 day length of time of compactness is 5.6Kpa, and the 14 day length of time, ultimate compression strength reached 7.4KPa, and the 28 day length of time, ultimate compression strength 9.6KPa reached the requirement of Class II highway base soil.The examination body was observed no accumulation of salt in the surface soil phenomenon through 2 years.
Claims (2)
1. dirt compound that contains waste causticized sand sludge, it is characterized in that concrete prescription (weight ratio) is: native naturally 65-70%, causticization sand 20-25%, lime 5-6%, sand 5%, the granularity of described waste causticized sand sludge ,≤5mm more than 90%, maximum particle size 10mm.
2. according to the described dirt compound of claim 1, the plasticity index that it is characterized in that nature soil is 17-20, and the granularity of soil block is less than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100857A CN1068898C (en) | 1998-02-26 | 1998-02-26 | Utilization of waste causticized sand sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100857A CN1068898C (en) | 1998-02-26 | 1998-02-26 | Utilization of waste causticized sand sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1227248A CN1227248A (en) | 1999-09-01 |
| CN1068898C true CN1068898C (en) | 2001-07-25 |
Family
ID=5216296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100857A Expired - Fee Related CN1068898C (en) | 1998-02-26 | 1998-02-26 | Utilization of waste causticized sand sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068898C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477711B (en) * | 2010-11-29 | 2013-12-25 | 中冶天工集团有限公司 | Muddy subgrade soil and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140151A (en) * | 1996-09-02 | 1997-01-15 | 天津碱渣地产开发有限公司 | Engrg. earth made from alkaline residue, making method and apparatus thereof |
-
1998
- 1998-02-26 CN CN98100857A patent/CN1068898C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140151A (en) * | 1996-09-02 | 1997-01-15 | 天津碱渣地产开发有限公司 | Engrg. earth made from alkaline residue, making method and apparatus thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1227248A (en) | 1999-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1990410B (en) | Cement regeneration technique by activating discarded concrete | |
| CN112125633A (en) | C30 grade full-solid waste concrete and preparation method thereof | |
| CN104876459A (en) | Coal ash activated excitant and high-content high-calcium fly-ash cement | |
| CN103833298B (en) | Slop protection material and preparation method thereof | |
| CN103086619B (en) | The preparation method of building waste micro-powder composite admixture | |
| CN101913831A (en) | Method for producing baking-free bricks by solidifying construction wastes by utilizing phosphogypsum | |
| CN107253847A (en) | The method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite | |
| CN104003674A (en) | Silicon-calcium plate and production method thereof | |
| CN101747007A (en) | Baking-free brick made from renewable material of building waste | |
| CN102336532B (en) | High-activity micro powder or cement produced by using papermaking waste residue and preparation method thereof | |
| CN102352622B (en) | Method for improving swelling soil by using alkali residue and construction method for alkali- residue-modified soil | |
| CN107761496A (en) | A kind of curing agent of the thick extra large mud widening subgrade of Powder Piles Reinforcement and preparation method thereof | |
| CN111072355A (en) | Baking-free brick made of sea sludge and preparation method thereof | |
| CN111704398A (en) | Recycled concrete based on old material of lime-fly-ash gravel base and preparation method thereof | |
| CN1931774B (en) | Stabilized soil of regenerated building residue and lime and its preparation process | |
| CN1068898C (en) | Utilization of waste causticized sand sludge | |
| CN101844904A (en) | Brucite fiber reinforced fly ash composite material | |
| CN102070322B (en) | Method for preparing high-strength ceramic wall material from papermaking causticized white mud residues | |
| KR100599226B1 (en) | The product of green planting porous concrete using industrial wastes and recycling aggregate | |
| CN107445532A (en) | Over cure electrolytic manganese residues concrete and preparation method thereof | |
| KR101293132B1 (en) | The binder composition using the main stuff for soil | |
| CN101624856B (en) | Environmental-friendly cement tile mixed with ballast and preparation method thereof | |
| CN113666674A (en) | Method for producing assembled wallboard by utilizing red mud | |
| CN101486557A (en) | Magnesium slag building block for construction | |
| KR100623609B1 (en) | Water permeable clayey block and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1062173 Country of ref document: HK |