CN101041566A - Producing method of three-component composite doping material for high-strength pipe pile production - Google Patents

Producing method of three-component composite doping material for high-strength pipe pile production Download PDF

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Publication number
CN101041566A
CN101041566A CNA2007100853729A CN200710085372A CN101041566A CN 101041566 A CN101041566 A CN 101041566A CN A2007100853729 A CNA2007100853729 A CN A2007100853729A CN 200710085372 A CN200710085372 A CN 200710085372A CN 101041566 A CN101041566 A CN 101041566A
Authority
CN
China
Prior art keywords
slag
pipe pile
concrete
silica sand
admixture
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.)
Pending
Application number
CNA2007100853729A
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Chinese (zh)
Inventor
蒋元海
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.)
JIAXING COLLEGE PIPE PILE APPLIED TECHNOLOGY RESEARCH INSTITUTE
Original Assignee
JIAXING COLLEGE PIPE PILE APPLIED TECHNOLOGY RESEARCH INSTITUTE
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 JIAXING COLLEGE PIPE PILE APPLIED TECHNOLOGY RESEARCH INSTITUTE filed Critical JIAXING COLLEGE PIPE PILE APPLIED TECHNOLOGY RESEARCH INSTITUTE
Priority to CNA2007100853729A priority Critical patent/CN101041566A/en
Publication of CN101041566A publication Critical patent/CN101041566A/en
Pending 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
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/48—Clinker treatment
    • C04B7/52—Grinding ; After-treatment of ground cement
    • C04B7/527—Grinding ; After-treatment of ground cement obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a preparing method of three-component composite blending material for producing high-strength pipe pile, which comprises the following steps: mixing slag (or steel slag) with mass percent at 30%-72%, high silica sand with mass percent at 10%-40% and powder coal ash with mass percent at 18%-30%; grinding till surface area>=350m2/kg; getting end product. This product can increase demoulding intensity of pipe pile concrete and press-steaming intensity, which possesses good technical economic benefit and social benefit.

Description

The high-strength pipe pile production making method of three-component composite doping material
Technical field
The present invention relates to the making method of a kind of high-strength pipe pile production with concrete admixture.
Background technology
In the prior art, (be called for short: the PHC pile tube) the used gelling material of production is high grade silicate cement or the ordinary Portland cement more than 42.5 grades to prestressed high-strength concrete pile.Ground slag (slag), levigate high silica sand, flyash etc. are used with concrete adulterant is existing as high-strength pipe pile production separately, but these adulterants are because its chemical constitution difference, they during separately as PHC pile tube adulterant in concrete strength forms the role difference, be difficult to the composite effect that reaches best.Among the patent ZL03113366.5 to slag (slag), high silica sand two components are levigate, and the back produces the existing report of pile tube as concrete admixture, but high-strength pipe pile production does not see that with three-component composite doping material report is arranged.
Summary of the invention
The object of the present invention is to provide a kind of high-strength pipe pile production making method, high grade silicate cement more than 42.5 grades or ordinary Portland cement that can equivalent substitution 40%～60% during with this composite blend production pile tube with three-component composite doping material.
Technical scheme of the present invention is: a kind of high-strength pipe pile production is with the making method of three-component composite doping material, and slag (or slag) is levigate to specific surface area 〉=350m with the compound back of certain proportion with high silica sand and flyash 2/ kg gets final product.The part by weight of slag in the three-component composite doping material (or slag) admixture is 30%～72%, and the part by weight of high silica sand admixture is 10%～40%, and the part by weight of flyash is 18%～30%; SiO in the high silica sand 2Content greater than 70%, can admixture grinding aid or concrete high efficiency water reducing agent during grinding, the addition content of grinding aid must not be greater than 1% of adulterant total amount, the addition content of concrete high efficiency water reducing agent must not be greater than 2% of adulterant total amount.
The principle of present technique method is: specific surface area 350～500m 2The slag of/kg (or slag) has good morning of strong hydrating capacity, and equivalent substitution silicate cement or ordinary Portland cement can improve concrete early strength.Specific surface area 350～500m 2The high silica sand of/kg, coal ash instead part silicate cement or ordinary Portland cement, under the maintenance action of the water vapor of the High Temperature High Pressure when pile tube is produced (170 ℃～200 ℃, 9～10 normal atmosphere), SiO 2With C 3S, C 2The hydrated product generation hydrothermal synthesis reaction of S forms the crystal mineral with higher-strength---holder shellfish mullite.When substituting the silicate cement of part high grade or ordinary Portland cement and produce pile tube with this composite blend, concrete has gelling property preferably under the maintenance action of the water vapor of High Temperature High Pressure (170 ℃～200 ℃, 9～10 normal atmosphere): admixture ground slag (or slag) can remedy the reduction of the early age strength of concrete that causes because of the levigate high silica sand of admixture; And the levigate high silica sand of admixture can improve the later strength of tubular pile concrete again under the autoclave curing condition.Because slag (or slag) and high silica sand all are difficult to mill, admixture grinding aid or concrete high efficiency water reducing agent during grinding can improve mill efficiency, reduce grinding pow consumption.Simultaneously, admixture concrete high efficiency water reducing agent during grinding, the operation of admixture concrete high efficiency water reducing agent shortens concrete churning time in the time of can also saving pile tube production.
The present invention compared with prior art has the following advantages: a kind of high-strength pipe pile production making method of three-component composite doping material, steam intensity with the silicate cement of the alternative high grade of this adulterant or demoulding strength and the pressure that ordinary Portland cement can improve tubular pile concrete, reduce cement consumption, economize on resources, reduce the pile tube production cost, alleviate slag (or slag) and flyash is to the pollution of environment, has good technical economic benefit and social benefit.
Embodiment
A kind of high-strength pipe pile production is with the making method of three-component composite doping material, and slag (or slag) is levigate to specific surface area 〉=350m with the compound back of certain proportion with high silica sand and flyash 2/ kg gets final product.The part by weight of slag in the three-component composite doping material (or slag) admixture is 30%～72%, and the part by weight of high silica sand admixture is 10%～40%, and the part by weight of flyash is 18%～30%; SiO in the high silica sand 2Content greater than 70%, can admixture grinding aid or concrete high efficiency water reducing agent during grinding, the addition content of grinding aid must not be greater than 1% of adulterant total amount, the addition content of concrete high efficiency water reducing agent must not be greater than 2% of adulterant total amount.Described feature is: slag (or slag) is levigate with the compound back of certain proportion with high silica sand and flyash.
Embodiment 1. is levigate to specific surface area 410m with the compound back of certain proportion with slag and high silica sand and flyash 2/ kg.The part by weight of high silica sand admixture is 35%, and the part by weight of flyash is 20%, the SiO in the high silica sand 2Content 91%.During grinding admixture MDF-5 type concrete high efficiency water reducing agent, the addition content of concrete high efficiency water reducing agent is 0.6% of an adulterant total amount.Substitute the AB type prestressed high-strength concrete pile that 42.5 grades of silicate cements of 45% are produced external diameter 400mm wall thickness 95mm with this adulterant, pile tube has saved the operation of admixture concrete high efficiency water reducing agent when producing, shorten concrete churning time 30 seconds.Carry out 95 ℃, 5 hours atmospheric steam curing behind the tubular pile concrete centrifugal forming, carry out 185 ℃, 10 hours autoclave curing then.Detection shows: concrete demoulding strength is 46MPa behind the atmospheric steam curing, and concrete strength reaches 92MPa after the autoclave curing.The mechanical property detected result of pile tube is shown in Table 1, the regulation of the GB13476-1999 that is up to state standards " pretensioned prestressed concrete pipe pile ".
The mechanical property detected result of table 1 pile tube
Detect cracking bending moment kNm Limit of detection bending moment kNm Standard cracking bending moment kNm Standard limit bending moment kNm
74 120 63 104

Claims (1)

1. a high-strength pipe pile production is with the making method of three-component composite doping material, and slag or slag is compound afterwards levigate to specific surface area 〉=350m with high silica sand and flyash three components 2/ kg gets final product; Admixture is not more than the grinding aid of adulterant total amount 1% or is not more than the concrete high efficiency water reducing agent of adulterant total amount 2% during grinding; Its described feature is: the part by weight of slag (or slag) admixture is 30%～72%, and the part by weight of high silica sand admixture is 10%～40%, and the part by weight of flyash is 18%～30%, the SiO in the high silica sand 2Content greater than 70%.
CNA2007100853729A 2007-02-28 2007-02-28 Producing method of three-component composite doping material for high-strength pipe pile production Pending CN101041566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100853729A CN101041566A (en) 2007-02-28 2007-02-28 Producing method of three-component composite doping material for high-strength pipe pile production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100853729A CN101041566A (en) 2007-02-28 2007-02-28 Producing method of three-component composite doping material for high-strength pipe pile production

Publications (1)

Publication Number Publication Date
CN101041566A true CN101041566A (en) 2007-09-26

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102173627A (en) * 2011-02-16 2011-09-07 蒋元海 Composite blending material of slag powder and use method
CN102172979A (en) * 2011-02-12 2011-09-07 嘉兴学院管桩应用技术研究所 Method for improving concrete strength of cement product
CN101602587B (en) * 2008-06-12 2012-10-17 江苏固丰管桩集团有限公司 Preparation for high-durability tubular pile concrete
CN101602582B (en) * 2008-06-12 2013-01-16 江苏固丰管桩集团有限公司 Preparation for tubular pile concrete additive with high crack resistance and high activity
CN105271850A (en) * 2015-09-18 2016-01-27 临沂大学 Preparation method of cement base material composite admixture and cement base material containing composite admixture
CN108996966A (en) * 2018-08-18 2018-12-14 枣庄鑫金山智能机械股份有限公司 A method of preparing spoil slag Machine-made Sand
CN109550495A (en) * 2018-11-15 2019-04-02 西安科技大学 W adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount
CN111072325A (en) * 2019-12-19 2020-04-28 江苏盐砼新材料科技有限公司 Easy-flowing type composite mineral admixture, preparation method thereof and mortar prepared by adopting admixture
CN111635157A (en) * 2020-06-22 2020-09-08 苏州海宏水泥制品有限公司 Concrete admixture, preparation method thereof and concrete added with concrete admixture

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101602587B (en) * 2008-06-12 2012-10-17 江苏固丰管桩集团有限公司 Preparation for high-durability tubular pile concrete
CN101602582B (en) * 2008-06-12 2013-01-16 江苏固丰管桩集团有限公司 Preparation for tubular pile concrete additive with high crack resistance and high activity
CN102172979A (en) * 2011-02-12 2011-09-07 嘉兴学院管桩应用技术研究所 Method for improving concrete strength of cement product
CN102173627A (en) * 2011-02-16 2011-09-07 蒋元海 Composite blending material of slag powder and use method
CN105271850A (en) * 2015-09-18 2016-01-27 临沂大学 Preparation method of cement base material composite admixture and cement base material containing composite admixture
CN105271850B (en) * 2015-09-18 2017-07-04 临沂大学 The preparation method of cement-based material composite blend and the cement-based material containing the composite blend
CN108996966A (en) * 2018-08-18 2018-12-14 枣庄鑫金山智能机械股份有限公司 A method of preparing spoil slag Machine-made Sand
CN109550495A (en) * 2018-11-15 2019-04-02 西安科技大学 W adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount
CN111072325A (en) * 2019-12-19 2020-04-28 江苏盐砼新材料科技有限公司 Easy-flowing type composite mineral admixture, preparation method thereof and mortar prepared by adopting admixture
CN111635157A (en) * 2020-06-22 2020-09-08 苏州海宏水泥制品有限公司 Concrete admixture, preparation method thereof and concrete added with concrete admixture

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