CN102285780B - Ultrahigh-performance cement-based composite material for banking and financial equipment and preparation method thereof - Google Patents

Ultrahigh-performance cement-based composite material for banking and financial equipment and preparation method thereof Download PDF

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Publication number
CN102285780B
CN102285780B CN2011101591240A CN201110159124A CN102285780B CN 102285780 B CN102285780 B CN 102285780B CN 2011101591240 A CN2011101591240 A CN 2011101591240A CN 201110159124 A CN201110159124 A CN 201110159124A CN 102285780 B CN102285780 B CN 102285780B
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cement
water
base composite
bank finance
performance cement
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CN102285780A (en
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关志峰
刘佳炎
陈文坤
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TRISTAR TECHNOLOGY GROUP (CHINA) CO., LTD.
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TRISTAR (NANTONG) Inc
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Abstract

The invention belongs to the technical field of banking and financial equipment manufacture, and particularly provides an ultrahigh-performance cement-based composite material for banking and financial equipment and a preparation method thereof. The composite material is characterized in that the composite material is prepared from the following raw materials according to a weight ratio: 1 of cement, 0.15-0.25 of silica fume, 0.40-0.80 of superfine mineral powder, 1.6-2.4 of refined quartz aggregate, 0.010-0.015 of high-efficacy water reducing agent, 0.30-0.50 of steel fiber and 0.34-0.42 of water. The composite material provided by the invention is used for the technical field of the banking and financial equipment, belonging to origination in China. The composite material provided by the invention has the following advantages that: the refined quartz aggregate with high strength and higher fire resistance is used, so that the strength and fire resistance of the composite material are greatly improved.

Description

A kind of bank finance equipment is with very-high performance cement-base composite material and preparation method thereof
Technical field
The invention belongs to bank finance equipment manufacturing technology field, is a kind of novel concrete based composites with superstrength, superhigh tenacity and fabulous fire resistance specifically.
Background technology
From the beginning of the nineties in last century; Very-high performance cement-base composite material (Ultra High Performance Cementitious Composites; All abbreviate UHPCC in the literary composition as) with characteristics such as its superstrength, superhigh tenacity, superelevation resistance to deformation and cracking ability and superelevation weather resistance and overlength service lifes; Become the high-end research focus of international composite industry, its Application Areas is also progressively enlarging.Traditional bank finance equipment all with special steel material or metal as main raw material.The shortcoming of metallic substance is that the fire resistant cutting property is poor, and cost is expensive, therefore begins to use successively UHPCC to improve the over-all properties of bank finance equipment with the make of " sandwich " in the world.
At present, be used for the UHPCC industrialization of bank finance apparatus field abroad, but its core technology maintains secrecy, domestic does not still have an application precedent.The UHPCC of domestic-developed is used for building material technical field more, and its fire resistant cutting property is relatively poor, and is not suitable for the bank finance manufacturing field of equipment.In addition; Two kinds of very-high performance cement-based materials appearred from the eighties in last century; Be DSP material (high fine and close cement based homogeneous system) and MDF material (macro-defect-free cement), scientist has developed RPC material (RPC) again on this basis.The Bache of Denmark Aalborg portland cement concrete testing laboratory adopts 70%~80% cement and 20%~30% silicon ash, and the superplasticizer of adding 1%~4% is prepared the DSP material of ultimate compression strength up to 120~260MPa.In the DSP material, the active mineral admixture kind is single, be merely the higher silicon ash of cost, and volume is up to 30%.RPC material ultimate compression strength can be up to 200~800MPa, but its preparation process is complicated, needs extrusion forming, high temperature steam curing or high temperature dry heating curing etc., is not suitable for sizable application.
Therefore it is lower to develop cost; Technological operation is simple; And comprise fire resistance good comprehensive properties very-high performance cement-base composite material,, break that international monopoly has important practical significance and actual application value the lifting of banks of China finance device manufacturing technology.
Summary of the invention
Goal of the invention
The objective of the invention is to be used for the shortcoming and defect on the performance that the bank finance apparatus field exists, the novel concrete based composites that a kind of superstrength, superhigh tenacity is provided and has had fabulous fire resistance to existing very-high performance cement-base composite material.
Technical scheme:The part by weight of the relative cement of each component of very-high performance cement-base composite material of the present invention is as follows:
Component Part by weight
Cement 1
The silicon ash 0.15~0.25
Super finely ground slag 0.40~0.80
Refining quartz aggregate 1.6~2.4
High efficiency water reducing agent 0.010~0.015
Steel fiber 0.30~0.50
Water 0.34~0.42
Cement: silicate cement or ordinary Portland cement, cement mark should not be lower than 52.5 grades;
The silicon ash: specific surface area is not less than 20000 m 2/ Kg;
Super finely ground slag: breeze is the Iron industry sub product, and the super finely ground slag specific surface area is about 750m 2/ Kg;
Refining quartz aggregate: refining quartz aggregate has higher fire performance, and its raising to the raising of over-all properties, particularly fire resistance is remarkable in the present invention.Dioxide-containing silica is not less than 99% in the refining quartz aggregate of requirement;
Refining quartz aggregate: the particle diameter of refining quartz aggregate is 0~1mm, continuous grading;
High efficiency water reducing agent: water-reducing rate is greater than 35% poly carboxylic acid series water reducer, pulvis;
Steel fiber: flat type steel fiber or end hook type steel fibers require length-to-diameter ratio to be not less than 40;
Water: common drinking water;
The bank finance equipment that the present invention proposes is following with the preparation method of very-high performance cement-base composite material: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
Wherein the manufacturer of cement, silicon ash, super finely ground slag, refining quartz aggregate, high efficiency water reducing agent, steel fiber is respectively the south of the River, Nanjing little wild water in field mud ltd, Shanghai Ai Ken International Trading Company Ltd, the solid building material Science and Technology Ltd. of Kunshan moral, Fengyang, Anhui silica sand factory, not gram science and technology (Suzhou) ltd, the prosperous Hong Gangxianweichang in Anshan.
Beneficial effect
The present invention is used for the bank finance equipment technical field, belongs to domestic initiation.The present invention has following advantage: (1) is adopted high-strength and is had the refining quartz aggregate of higher fire performance, and the intensity of matrix material and fire resistance are largely increased.(2) adopt the mineral admixture (silicon ash and super finely ground slag) of size fractionated, the density of hardened paste is increased, reduced the generation of void content and crackle, and mostly mineral admixture be industry byproduct, help environmental protection.(3) very-high performance cement-base composite material of the present invention adopts natural curing, need not high-temperature steam or high temperature dry heating curing, and is simple to operate, saves energy cost, is suitable for scale operation.(4) the present invention is filling up the banks of China finance device aspect Composite Preparation, and it is significant in the technological status in this field to promote China.
Embodiment
Embodiment 1:
The part by weight of the relative cement of each component of matrix material is following:
Component Part by weight
Cement 1
The silicon ash 0.25
Super finely ground slag 0.80
Refining quartz aggregate 2.4
High efficiency water reducing agent 0.015
Steel fiber 0.50
Water 0.42
Through test, 28 days ultimate compression strength of this very-high performance cement-base composite material is 164.6MPa.
Preparing method of the present invention is: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
Embodiment 2:
The part by weight of the relative cement of each component of matrix material is following:
Component Part by weight
Cement 1
The silicon ash 0.25
Super finely ground slag 0.80
Refining quartz aggregate 2.0
High efficiency water reducing agent 0.015
Steel fiber 0.50
Water 0.42
Through test, 28 days ultimate compression strength of this very-high performance cement-base composite material is 152.3MPa.
Preparing method of the present invention is: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
Embodiment 3:
The part by weight of the relative cement of each component of matrix material is following:
Component Part by weight
Cement 1
The silicon ash 0.25
Super finely ground slag 0.80
Refining quartz aggregate 2.0
High efficiency water reducing agent 0.015
Steel fiber 0.50
Water 0.34
Through test, 28 days ultimate compression strength of this very-high performance cement-base composite material is 171.9MPa.
Preparing method of the present invention is: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
Embodiment 4:
The part by weight of the relative cement of each component of matrix material is following:
Component Part by weight
Cement 1
The silicon ash 0.15
Super finely ground slag 0.40
Refining quartz aggregate 1.6
High efficiency water reducing agent 0.010
Steel fiber 0.30
Water 0.34
Through test, 28 days ultimate compression strength of this very-high performance cement-base composite material is 162.3MPa.
Preparing method of the present invention is: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
Embodiment 5:
The part by weight of the relative cement of each component of matrix material is following:
Component Part by weight
Cement 1
The silicon ash 0.15
Super finely ground slag 0.40
Refining quartz aggregate 1.6
High efficiency water reducing agent 0.010
Steel fiber 0.50
Water 0.34
Through test, 28 days ultimate compression strength of this very-high performance cement-base composite material is 178.7MPa.
Preparing method of the present invention is: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
Embodiment 6:
The part by weight of the relative cement of each component of matrix material is following:
Component Part by weight
Cement 1
The silicon ash 0.15
Super finely ground slag 0.80
Refining quartz aggregate 2.0
High efficiency water reducing agent 0.015
Steel fiber 0.50
Water 0.34
Through test, 28 days ultimate compression strength of this very-high performance cement-base composite material is 173.1MPa.
Preparing method of the present invention is: (A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it; (B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it; (C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring; (D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm; (E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.

Claims (10)

1. a bank finance equipment is used the very-high performance cement-base composite material, it is characterized in that the part by weight of this matrix material is:
Component Part by weight Cement 1 The silicon ash 0.15~0.25 Super finely ground slag 0.40~0.80 Refining quartz aggregate 1.6~2.4 High efficiency water reducing agent 0.010~0.015 Steel fiber 0.30~0.50 Water 0.34~0.42
2. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, said cement is silicate cement or ordinary Portland cement, and cement mark should be not less than 52.5 grades.
3. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, the specific surface area of said silicon ash should not be lower than 20000 m 2/ Kg.
4. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, the specific surface area of said super finely ground slag is 750m 2/ Kg.
5. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, dioxide-containing silica is not less than 99% in the said refining quartz aggregate.
6. a kind of bank finance equipment according to claim 5 is used the very-high performance cement-base composite material, it is characterized in that the particle diameter of said refining quartz aggregate is at 0~1mm.
7. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, said high efficiency water reducing agent is a water-reducing rate greater than 35% poly carboxylic acid series water reducer, pulvis.
8. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, said steel fiber is flat type steel fiber or end hook type steel fibers, requires length-to-diameter ratio to be not less than 40.
9. a kind of bank finance equipment according to claim 1 is used the very-high performance cement-base composite material, it is characterized in that, said water is common drinking water.
10. a kind of bank finance equipment according to claim 1 is characterized in that with the preparation method of very-high performance cement-base composite material:
(A) according to cooperating ratio weighing cement, silicon ash, super finely ground slag, refining quartz aggregate and high efficiency water reducing agent, dry mixing 2~3 minutes mixes it;
(B) according to cooperating ratio weighing water, start stirrer, and water is slowly joined in the mixed material that has mixed, become slurry until it;
(C) be uniformly distributed in the slurry according to cooperation ratio weighing steel fiber, and with it, treat that steel fiber all drops into, continue stirring again and stop after 2 minutes stirring;
(D) with the mixture standard water earth rubber sand three joint-trial moulds of packing into, and vibrating forming, the moulding die trial is of a size of 40mm * 40mm * 160mm;
(E) leave standstill form removal after 24 hours, test specimen is carried out normal curing, carry out intensity test after 28 days.
CN2011101591240A 2011-06-15 2011-06-15 Ultrahigh-performance cement-based composite material for banking and financial equipment and preparation method thereof Active CN102285780B (en)

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CN102531493B (en) * 2011-12-30 2014-03-26 重庆暄洁环保产业(集团)股份有限公司 White or colored cement-based composite material plate with super-high strength and preparation method thereof
CN106522462A (en) * 2016-11-23 2017-03-22 东南大学 High-strength high-strain low-heat-conductivity-coefficient thermal-insulation/sound-insulation/fireproof integrated board and preparation method thereof
CN107324712B (en) * 2017-07-27 2019-10-11 长安大学 Very-high performance steel fiber reinforced concrete and preparation method thereof

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Address after: 226300, No. 1888, Tong Jin Road, Tongzhou Economic Development Zone, Jiangsu, Nantong

Patentee after: TRISTAR TECHNOLOGY GROUP (CHINA) CO., LTD.

Address before: 226300, No. 1888, Tong Jin Road, Tongzhou Economic Development Zone, Jiangsu, Nantong

Patentee before: TriStar (Nantong) Inc.

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Denomination of invention: Ultrahigh-performance cement-based composite material for banking and financial equipment and preparation method thereof

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