CN1309675C - Desalting sea sand high-performance concreet mixing materials and preparing method thereof - Google Patents

Desalting sea sand high-performance concreet mixing materials and preparing method thereof Download PDF

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Publication number
CN1309675C
CN1309675C CNB200410024910XA CN200410024910A CN1309675C CN 1309675 C CN1309675 C CN 1309675C CN B200410024910X A CNB200410024910X A CN B200410024910XA CN 200410024910 A CN200410024910 A CN 200410024910A CN 1309675 C CN1309675 C CN 1309675C
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China
Prior art keywords
performance concrete
flyash
cement
water
sea sand
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Expired - Fee Related
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CNB200410024910XA
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Chinese (zh)
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CN1583650A (en
Inventor
肖建庄
孙振平
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Tongji University
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Tongji University
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Priority to CNB200410024910XA priority Critical patent/CN1309675C/en
Publication of CN1583650A publication Critical patent/CN1583650A/en
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Publication of CN1309675C publication Critical patent/CN1309675C/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The present invention relates to a high-performance concrete mixing material for civil engineering and a preparing method thereof. The high-performance concrete mixing material is formed by the method that cement, pulverized coal ash, milled slag powder and water are added in desalting sea sand as a main raw material and are stirred. The high-performance concrete mixing material has the characteristics of high strength, good operation, high durability and the like and provides an ideal high-performance concrete with an ecological structure for load bearing, and the high-performance concrete mixing material can be widely applied to building structures, marine structures, hydraulic structures, etc.

Description

Desalted sea sand high performance concrete compound and preparation method thereof
Technical field
The invention belongs to the concrete material technical field, be specifically related to load larrying member usefulness C60-C80 high-performance concrete material and preparation method that a kind of desalted sea sand that forms through strict technology desalination with the abundant extra large sand of reserves and industrial waste (flyash and ground slag powder) be main raw material.
Background technology
Because the needs of environment protection and Sustainable development, the exploitation of natural sandstone will be subjected to increasing restriction, thereby cause natural river sand and mountain sand supply day to be becoming tight, and price increase is obvious; And the huge extra large sand of reserves never utilizes well and develops.
In addition, flyash and slag are as a kind of industrial waste, and the disposal of not only contaminate environment, and stacking can take a large amount of good farmlands.
With the later extra large sand of strictness desalination is that fine aggregate and industrial waste (flyash and ground slag powder) are the inventions of the load larrying member of key character with high performance concrete, can utilize the abundant extra large sand of reserves in a large number, efficiently utilize flyash and ground slag powder, minimizing, thereby improve concrete-containing building material ecologic effect and Sustainable development comprehensively the exploitation of river sand and mountain sand and the application that reduces cement clinker.
Summary of the invention
The objective of the invention is to propose a kind of load larrying member high performance concrete compound and preparation method thereof with high strength and high-durability.
The load larrying member high performance concrete compound that the present invention proposes to be main component through the extra large sand of desalination and industrial waste flyash and ground slag powder, to add water, cement and water reducer and stirs and form, and its prescription of pressing quality is as follows:
Cement: 100
Flyash: 0-300
Ground slag powder: 0-600
Water: 50-600
Desalted sea sand: 10-1600
Stone: 25-2000
Water reducer: 0-30.
Above-mentioned high performance concrete compound, the prescription that each component is comparatively suitable is:
Cement: 100
Flyash: 10-70
Ground slag powder: 10-150
Water: 15-150
Desalted sea sand: 40-400
Stone: 80-600
Water reducer: 0.8-8.
Wherein each being formed divides the quality requirements of material as follows:
Cement: normal silicate and silicate cement, class 4 2.5 or 52.5 is advisable.
Flyash: I and II level flyash
Ground slag powder: the S95 ground slag powder, specific surface area is at 380m 2The slag micropowder that/kg is above.
Desalted sea sand: fineness modulus is 2.2-3.0, and silt content is less than 1%, and chlorion is no more than 0.01%, and shell content is lower than 4%.
Stone: the size distribution of stone is between 5-25mm.
Water reducer: high efficiency water reducing agent commonly used.
The preparation process of high performance concrete compound of the present invention is as follows:
Take by weighing each component by the quality proportioning, cement, flyash, ground slag powder, desalted sea sand and stone are added in the stirrer, and add entry and water reducer, stir, water and smash after the moulding maintenance 28-60 days.
The present invention utilizes the active effect of cement, flyash and ground slag powder, is that main raw material is made with extra large sand through the desalted sea sand that the strictness desalination forms.This compound have have good workability, characteristics such as intensity height and weather resistance height, be a kind of more satisfactory load larrying member high-performance concrete materials, can be widely used in building structure, marine structure and hydro-structure etc.
The present invention has the following advantages:
1) to adopt desalted sea sand be fine aggregate in the present invention, can utilize extra large sand in a large number, reduces the exploitation to natural sand.
2) to adopt flyash in great mixed amount and ground slag powder be gelling material in the present invention, can reclaim in a large number and efficiently utilize industrial waste, also can reduce energy consumption and the pollution of cement clinker in process of manufacture.
3) apply this high performance concrete, have tangible environment, economy and social synthesis's benefit.
Embodiment:
Embodiment 1:
Each set of dispense of C60 flyash desalted sea sand high performance concrete compound is such as following:
42.5 class g cement: 413kg
II level flyash: 73kg
Desalted sea sand: 738kg
Stone (5-25mm): 1019kg
Water: 175kg
Water reducer: 11.8kg
In the above ratio its preparing materials following performance is arranged:
The concrete mix slump: 220mm; 28d ultimate compression strength: 65.9MPa; Chloride ion permeability: very low.
Embodiment 2:
Each set of dispense of C80 ground slag desalted sea sand high performance concrete compound is such as following:
42.5 class g cement: 385kg
Ground slag powder: 165kg
Desalted sea sand: 718kg
Stone (5-20mm): 1078kg
Water: 143kg
Water reducer: 11kg
In the above ratio its preparing materials following performance is arranged:
The concrete mix slump: 250mm; 28d ultimate compression strength: 94MPa; Chloride ion permeability: very low.
Embodiment 3:
Each set of dispense that C80 flyash and ground slag be two mixes desalted sea sand high performance concrete compound is such as down:
42.5 class g cement: 371kg
I level flyash: 62kg
Ground slag powder: 138kg
Desalted sea sand: 660kg
Stone (5-20mm): 1076kg
Water: 143kg
Water reducer: 11.4kg
In the above ratio its preparing materials following performance is arranged:
The concrete mix slump: 220mm; 28d ultimate compression strength: 95.6MPa; Chloride ion permeability: very low.

Claims (6)

1, a kind of civil engineering work load larrying member high performance concrete compound, it is characterized in that with extra large sand and flyash, ground slag powder through desalination be main component, adding water, cement and water reducer stirring forms, its prescription by quality is as follows: cement 100, flyash 0-300, ground slag powder 0-600, water 50-600, desalted sea sand 10-1600, stone 25-2000, water reducer 0-30; The fineness modulus of wherein said desalted sea sand is 2.2-3.0, and silt content is less than 1%, and chlorion is no more than 0.01%, and shell content is lower than 4%.
2, building load larrying member high performance concrete compound according to claim 1 is characterized in that each component is as follows by the quality proportioning: cement 100, flyash 10-70, ground slag powder 10-150, water 15-150, desalted sea sand 40-400, stone 80-600, water reducer 0.8-8.
3, high performance concrete compound according to claim 1 and 2 is characterized in that described cement adopts ordinary Portland cement or silicate cement, and strength grade is 42.5 or 52.5.
4, high performance concrete compound according to claim 1 is characterized in that described flyash adopts I level flyash or II level flyash.
5, high performance concrete compound according to claim 1 is characterized in that described ground slag powder adopts specific surface area at 380m 2The slag micropowder that/kg is above.
6, a kind of preparation method of high performance concrete compound as claimed in claim 1, it is characterized in that concrete steps are as follows: take by weighing each component by the quality proportioning, cement, flyash, ground slag powder, desalted sea sand and stone are added in the stirrer, and add entry and water reducer, stir, water and smash after the moulding maintenance 28-60 days.
CNB200410024910XA 2004-06-03 2004-06-03 Desalting sea sand high-performance concreet mixing materials and preparing method thereof Expired - Fee Related CN1309675C (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN1309675C true CN1309675C (en) 2007-04-11

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Families Citing this family (16)

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CN101786811B (en) * 2010-01-15 2012-01-11 中国水利水电第三工程局有限公司 Method for preparing multicomponent powder binding material
CN101787734B (en) * 2010-02-26 2011-08-17 哈尔滨工业大学深圳研究生院 Sea sand concrete member of admixtures and method for preparing same
CN101793055B (en) * 2010-03-12 2011-06-15 哈尔滨工业大学深圳研究生院 Sea-sand concrete member and manufacturing method thereof
CN102219444A (en) * 2011-03-08 2011-10-19 刘新国 Preparation method of light aggregate concrete floor tile
CN102219445A (en) * 2011-03-08 2011-10-19 刘新国 Preparation method of light aggregate concrete building blocks
CN102320794A (en) * 2011-08-25 2012-01-18 暨南大学 High-strength concrete prepared by sea sand
CN102432245B (en) * 2011-08-29 2013-06-19 冯乃谦 Method for making concrete for manufacturing pre-stress pipe piles
CN102491688B (en) * 2011-11-16 2013-03-06 北京科技大学 Concrete material for pipe pile
CN105174847B (en) * 2015-09-18 2017-05-31 河南省基本建设科学实验研究院有限公司 A kind of commerical ready-mixed concrete of utilization Yellow River mud
CN105621991A (en) * 2016-01-08 2016-06-01 中电建路桥集团有限公司 Marine concrete based on combined functional type additive
CN105693151B (en) * 2016-01-18 2018-08-24 同济大学 A kind of sea sand regeneration concrete revetment brick and preparation method thereof
CN106587873A (en) * 2016-11-21 2017-04-26 同济大学 Self-leveling mortar mixed with desalted sea sand
CN106673559B (en) * 2017-01-05 2018-10-02 陈冠臻 Marine ecology engineering corrosion resistant concrete material and preparation method thereof
CN106587855B (en) * 2017-01-05 2018-12-28 蔡中元 Antibacterial marine ecology engineering concrete material and preparation method thereof
CN107902991A (en) * 2017-11-17 2018-04-13 天津海得润滋建材有限公司 High performance concrete mixture
CN111960756A (en) * 2020-07-14 2020-11-20 河海大学 Novel fine concrete based on sea sand and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1208316A (en) * 1997-08-12 1999-02-17 黎宁 Environment-protecting and power-saving sound box

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1208316A (en) * 1997-08-12 1999-02-17 黎宁 Environment-protecting and power-saving sound box

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