CN1181003C - Granular soil stabled special cement - Google Patents

Granular soil stabled special cement Download PDF

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Publication number
CN1181003C
CN1181003C CNB021477329A CN02147732A CN1181003C CN 1181003 C CN1181003 C CN 1181003C CN B021477329 A CNB021477329 A CN B021477329A CN 02147732 A CN02147732 A CN 02147732A CN 1181003 C CN1181003 C CN 1181003C
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CN
China
Prior art keywords
cement
weight
granular material
soil stabilization
strength
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
Application number
CNB021477329A
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Chinese (zh)
Other versions
CN1410378A (en
Inventor
周明凯
沈卫国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Science and Engineering WUSE
Wuhan University of Technology WUT
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Wuhan University of Technology WUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CNB021477329A priority Critical patent/CN1181003C/en
Publication of CN1410378A publication Critical patent/CN1410378A/en
Application granted granted Critical
Publication of CN1181003C publication Critical patent/CN1181003C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00215—Mortar or concrete mixtures defined by their oxide composition
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The present invention relates to special cement for steadying granular material soil, which has long coagulation time and micro expansion. The cement is prepared from the compositions of the proportion by weight: 20% to 25% of Portland cement clinker, 65% to 70% of granulated blast furnace slag (can be replaced by 8% to 10% of limestone), 100% of mixing materials prepared from 8% to 14% of gypsum and the extra mix materials of 0.05% of solidifying element. The cement can be used in engineering such as roads, base layers of fields and plateaus, water conservancy protection slopes, etc. The final coagulation time of the cement reaches more than 5 hours, and the net paste expansion rate of the cement in 28 days is from 0.01% to 0.15 %. The cement is in a 27.5 strength grade and a 32.5 strength grade. When the cement is used for steadying granular material soil, the cement can reach the same strength by saving 10% to 20% of cement mixing amount. Under the same cement mixing amount, the granular material steadying strength of the cement is more than the granular material steadying strength of 32.5 grade universal cement by 20%. Because the cement has longer coagulation time and micro expansion performance, the cement can ensure that steadied granular material mixing materials have longer delay forming time, and the cement can effectively compensate the contraction of base materials.

Description

Pellet soil stabilization cement special
Technical field
The present invention relates to a kind of novel pellet soil stabilization cement special with long and micro-expansibility time of coagulation.
Background technology
In the road surface base layer material of China, major part is cement stabilized granular soil (rubble, a gravel), there are two big main drawbacks at present in cement stabilized granular soil: delay in forming time is short, splitting resistance is poor, has brought inconvenience to construction organization, has also greatly influenced the working life of bituminous pavement.The normal both at home and abroad method that adds retardant and swelling agent that adopts prolongs delay in forming time and the splitting resistance of improving cement stabilized granular, but because the consumption of admixture is few, is difficult for admixing in the compound equably.Therefore, result of use is poor, and cost is too high.
Summary of the invention
The objective of the invention is in order to solve that general cement stabilized granular delay in forming time is short, splitting resistance is undesirable and a kind of pellet soil stabilization cement special is provided.
A kind of pellet soil stabilization cement special (code name AGS) that reaches the object of the invention with long and micro-expansibility time of coagulation; by weight 20%～25% Portland clinker; the granulated blast-furnace slag of weight 65%～70%; the compound of the weight percentage summation 100% that weight 8%～14% gypsum is made into solidifies plain the composition with adding, and solidifying plain add-on is compound weight 0.05%.。
Described pellet soil stabilization cement special; the Wingdale instead of part slag of used weight 8%～10% in the batching; its cement is by weight 20%～25% Portland clinker; the granulated blast-furnace slag of weight 55%～62%; weight 8%～14% gypsum; the compound of the weight percentage summation 100% that the Wingdale of weight 8%～10% is made into solidifies plain the composition with adding, and solidifying plain add-on is compound weight 0.05%.。
Described pellet soil stabilization cement special fineness 〉=300m 2/ kg contains SO 3Weight percentage is 4.0%～5.5%.
Used gypsum is the plaster of paris or chemical gypsum in the described pellet soil stabilization cement special.In the described pellet soil stabilization cement special used solidify plain for being selected from glycerol, trolamine, sugared calcium, fructose, the sucrose any material or any above mixture in them.
The preparation method of pellet soil stabilization cement special of the present invention is:
Employing reaches Portland clinker, granulated blast-furnace slag, gypsum and the Wingdale of GB; drop in the masher in the setting weight ratio; combined grinding; and the compound weight 0.05% curing element of will milling adds the material from bistrique by volume pump; grinding promptly obtains pellet soil stabilization cement special evenly to the fineness that requires.
Pellet soil stabilization cement special of the present invention is used for stable granulate geotechnique journey.
Pellet soil stabilization cement special of the present invention is a kind of slow setting micro-expansion cement.Its final setting time reaches more than the 5h, and clean slurry rate of expansion was 1.0 ‰～1.5 ‰ in 28 days, and its intensity has 27.5 and 32.5 two strength grades.When being used for stable granulate soil, reaching identical intensity and can save cement mixing content 10%～20%; 32.5 grades of general cement stabilized granulars of AGS stable granulate strength ratio of identical cement mixing content are high by 20%～30%.The time of coagulation that AGS is long, can guarantee that the stable granulate compound has long delay in forming time; The micro-expansibility of AGS can effectively compensate the contraction of base material.
The mode of production of this pellet soil stabilization cement special does not need special production and preparation of construction, adopts to reach the ripe grain of silicate cement, the granulated blast-furnace slag that GB requires, and the plaster of paris or chemical gypsum all can be used for producing AGS.AGS solidifies element by after volume pump is from bistrique adding material, evenly is blended in the AGS product through grinding, and the product through being up to the standards promptly can be used for the engineering of stable granulate soil.
Embodiment
Embodiment 1
AGS prescription: Portland clinker 25%; Granulated blast-furnace slag 66%; Anhydrite 9%; Sucrose admixture 5/10000ths; Grinding fineness is that the 0.08mm standard sieve tails over is 3.25%, SO 3% content 4.54%.
Performance: standard consistency 24.0; Time of coagulation: presetting period 3h45min, final setting time 5h25min; Folding strength: 3d:3.8MPa, 28d:7.5MPa; Ultimate compression strength: 3d:16.4MPa, 28d:42.6MPa.
Use: the AGS stable granulate of identical volume improves 25～30% than 32.5 grades of ordinary Portland cement stable granulate intensity.
Embodiment 2
AGS prescription: Portland clinker 20%; Granulated blast-furnace slag 68%: natural dihydrate gypsum 12%; Glycerol and sucrose weight ratio are 1: 3 admixture 5/10000ths; Grinding fineness 4.71%, SO 3% content 4.31%.
Performance: standard consistency 24.5; Time of coagulation: presetting period 5h25min, final setting time 8h25min; Folding strength: 3d:3.6MPa, 28d:7.2MPa; Ultimate compression strength: 3d:14.2MPa, 28d:37.6MPa.
Use: the AGS stable granulate of identical volume improves 40%～50% than 32.5 grades of ordinary Portland cement stable granulate intensity.
Embodiment 3
AGS prescription: Portland clinker 18%; Granulated blast-furnace slag 70%; Phosphogypsum 12%; Sugar calcium and sucrose weight ratio are 1: 1 admixture 5/10000ths; Grinding fineness 2.8%, SO 3% content 4.8%.
Performance: standard consistency 25.0; Time of coagulation: presetting period 3h50min, final setting time 6h50min; Folding strength: 3d:3.7MPa, 28d:6.8MPa; Ultimate compression strength: 3d:15.5MPa, 28d:36.9MPa.
Use: the AGS stable granulate of identical volume improves 25%～35% than 32.5 grades of ordinary Portland cement stable granulate intensity.
Embodiment 4
AGS prescription: Portland clinker 18%; Granulated blast-furnace slag 62%; Wingdale: 8%; Phosphogypsum 12%; Glycerol: three ethanol: the admixture 5/10000ths of fructose weight ratio=1: 1: 1; Grinding fineness 2.8%, SO 3% content 4.8%.
Performance: standard consistency 25.0; Time of coagulation: presetting period 4h10min, final setting time 6h55min; Folding strength: 3d:3.6MPa, 28d:6.7MPa; Ultimate compression strength: 3d:15.8MPa, 28d:36.3MPa.
Use: the AGS stable granulate of identical volume improves 25%～35% than 32.5 grades of ordinary Portland cement stable granulate intensity.

Claims (5)

1, a kind of pellet soil stabilization cement special; it is characterized in that by weight 20%～25% Portland clinker; the granulated blast-furnace slag of weight 55%～62%; the gypsum of weight 8%～14%; the compound of the weight percentage summation 100% that the Wingdale of weight 8%～10% is made into solidifies plain the composition with adding, and solidifying plain add-on is compound weight 0.05%.
2, pellet soil stabilization cement special as claimed in claim 1 is characterized in that this cement fineness 〉=300m 2/ kg contains SO 3Weight percentage is 4.0%～5.5%.
3, pellet soil stabilization cement special as claimed in claim 1, it is characterized in that described solidify plain for being selected from glycerol, trolamine, sugared calcium, fructose, the sucrose any material or any above mixture in them.
4, the preparation method of the described pellet soil stabilization of claim 1 cement special is characterized in that:
Employing reaches Portland clinker, granulated blast-furnace slag, gypsum and the Wingdale of GB; drop in the masher in the setting weight ratio; the mixing of milling; and the curing element of the compound weight 0.05% of will milling adds the material from bistrique by volume pump; mix grinding is even, promptly obtains pellet soil stabilization cement special.
5, the application of the described pellet soil stabilization of claim 1 cement special is characterized in that this cement is used for stable granulate geotechnique journey.
CNB021477329A 2002-11-26 2002-11-26 Granular soil stabled special cement Expired - Fee Related CN1181003C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB021477329A CN1181003C (en) 2002-11-26 2002-11-26 Granular soil stabled special cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021477329A CN1181003C (en) 2002-11-26 2002-11-26 Granular soil stabled special cement

Publications (2)

Publication Number Publication Date
CN1410378A CN1410378A (en) 2003-04-16
CN1181003C true CN1181003C (en) 2004-12-22

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102173609A (en) * 2011-01-04 2011-09-07 段力为 Cement and preparation method thereof
CN104556887B (en) * 2013-10-17 2016-08-31 上海城建道路工程有限公司 Cement stabilized base course material, prepare, apply and the preparation method of roadbase
CN104211440B (en) * 2014-09-10 2017-07-18 江苏名和集团有限公司 A kind of preparation method for revealing aggregate concrete and its undisguised material rinsing agent used
CN106316175B (en) * 2016-08-25 2019-01-22 中国建筑材料科学研究总院 Microdilatancy slow setting portland cement
CN110615654A (en) * 2019-04-11 2019-12-27 苏州重于山新材料科技有限公司 Curing material for reinforcing soft soil foundation in low-temperature construction and application method thereof

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Granted publication date: 20041222

Termination date: 20111126