CN103922650A - High-compactness and ultrahigh-strength cement-based composite material for financial equipment in bank - Google Patents

High-compactness and ultrahigh-strength cement-based composite material for financial equipment in bank Download PDF

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Publication number
CN103922650A
CN103922650A CN201410119500.7A CN201410119500A CN103922650A CN 103922650 A CN103922650 A CN 103922650A CN 201410119500 A CN201410119500 A CN 201410119500A CN 103922650 A CN103922650 A CN 103922650A
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China
Prior art keywords
cement
fine
composites
close
water
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Pending
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CN201410119500.7A
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Chinese (zh)
Inventor
关志峰
刘佳炎
陈文坤
黄微
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TRISTAR TECHNOLOGY GROUP (CHINA) Co Ltd
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TRISTAR TECHNOLOGY GROUP (CHINA) Co Ltd
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Priority to CN201410119500.7A priority Critical patent/CN103922650A/en
Publication of CN103922650A publication Critical patent/CN103922650A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high-compactness and ultrahigh-strength cement-based composite material for financial equipment in a bank. The composite material is prepared by uniformly mixing microfine cement, silicon ash, ultrahigh-strength basalt sand, high-efficiency water reducing agent, copper-plated steel fiber and water according to certain ratio, and carrying out standard curing, wherein the weight ratio of all the components in the cemented-based composite material relative to the microfine cement is as follows: the microfine cement is 1, the silicon ash is 0.15-0.25, the ultrahigh-strength basalt sand is 1.2-1.8, the high-efficiency water reducing agent is 0.005-0.010, the copper-plated steel fiber is 0.40-0.60 and water is 0.19-0.25. The compressive strength of the prepared composite material is more than 180MPa.

Description

High fine and close, Ultrastrength cement based composites for a kind of bank finance equipment
Technical field
The invention belongs to bank finance equipment manufacturing technology field, is a kind of Novel steel fiber refinforced cement based composites with superstrength, superhigh tenacity, high densification and high-protection level specifically.
Background technology
The beginning of the nineties in last century, ultra high performance cementitious (Ultra High Performance Cementitious Composites, Wen Zhongjun is referred to as UHPCC) with features 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 study hotspot of international composite industry, its Application Areas is also progressively expanding.Traditional bank finance equipment is all usingd special steel material or metal as main raw material.The shortcoming of metallic substance is that fire resistant cutting property is poor, and cost is expensive, therefore starts in the world to use successively UHPCC with the make of " sandwich ", to improve the over-all properties of bank finance equipment.
From the eighties in last century, there are two kinds of ultrahigh-performance cement-based materials, i.e. DSP material (high fine and close cement based homogeneous system) and MDF material (macro-defect-free cement), scientist has developed again RPC material (RPC) on this basis.The Bache of Denmark Aalborg portland cement concrete testing laboratory adopts 70%~80% cement and 20%~30% silicon ash, adds 1%~4% superplasticizer to prepare ultimate compression strength up to the DSP material of 120~260MPa.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.
At present, abroad for the industrialization of UHPCC of bank finance apparatus field, but its core technology maintains secrecy, the UHPCC of high-protection level the 4th grade of protection of the EN-1143 of European Union standard (as meet) particularly, the domestic application precedent that there is no.Therefore, research and development meet the UHPCC of the 4th grade of requirement of shelter of the EN-1143 of European Union standard, and the lifting to banks of China finance device manufacturing technology breaks that international monopoly has important practical significance and actual application value.
Summary of the invention
For the monopolization with cement-base composite material to high-protection level bank finance equipment abroad, developed the height densification, the Ultrastrength cement based composites that meet the 4th grade of requirement of shelter of the EN-1143 of European Union standard, through natural curing, ultimate compression strength is more than 180MPa.
For realizing above technical purpose, the present invention will take following technical scheme:
High fine and close, a Ultrastrength cement based composites for bank finance equipment, each component of this matrix material with respect to the part by weight of fine cement is:
Component Part by weight
Fine cement 1
Silicon ash 0.15~0.25
The strong basalt sand of superelevation 1.2~2.4
High efficiency water reducing agent 0.005~0.010
Copper plated steel fiber 0.30~0.60
Water 0.19~0.25
Described fine cement is by label, to be not less than silicate cement or the ordinary Portland cement of 52.5 grades to make through levigate, and fineness is at 400m 2/ kg~450m 2/ kg.
The fineness of described silicon ash is not less than 20000m 2/ Kg, particle diameter is between 0.1 μ m~0.2 μ m.
The ultimate compression strength of the strong basalt sand of described superelevation is 300MPa, and particle diameter is at 0mm~5mm.
Described high efficiency water reducing agent is the poly carboxylic acid series water reducer that water-reducing rate is greater than 35%.
Described copper plated steel fiber is flat type steel fiber or end hook type steel fibers, and the length-to-diameter ratio of this copper plated steel fiber is not less than 40.
Described water is common drinking water.
The present invention is for bank finance equipment technical field, particularly for the bank finance equipment of high-protection level, as meets the 4th grade of requirement of shelter of EN-1143 standard.With respect to prior art, the present invention has advantages of following:
(1) adopting fine cement and silicon ash is gelling material, and fine cement fineness is at 400m 2/ kg~450m 2/ kg, itself is exactly good interface modifier, has improved interfacial transition zone, has strengthened the cohesive force of gelling material and aggregate; Adopt silicon ash as mineral admixture, not only effectively filled the space of fine cement particle, density is increased; And because making intensity, pozzolanic reaction is improved.
(2) the basalt sand ultimate compression strength of superstrength, up to 300MPa, is the basis of preparing ultrahigh-strength cement based composites.In ultrahigh-strength cement based composites, the intensity of aggregate plays a decisive role to the final strength of matrix material.
(3) high fine and close, Ultrastrength cement based composites employing natural curing of the present invention, without high-temperature steam or high temperature dry heating curing, simple to operate, saves the energy, is suitable for scale operation.
(4) performance of cement-base composite material of the present invention meets the 4th grade of degree of protection requirement in the EN-1143 of European Union standard, promotes China significant in the technology status of high-grade bank finance manufacturing field of equipment.
Embodiment
Below with reference to embodiment, explain technical scheme of the present invention.
High densification for bank finance equipment, Ultrastrength cement based composites are mixed according to a certain percentage and formed through normal curing by fine cement, silicon ash, the strong basalt sand of superelevation, high efficiency water reducing agent, copper plated steel fiber and water.Each component of this cement-base composite material with respect to the part by weight of fine cement is: fine cement: 1; Silicon ash: 0.15~0.25; The strong basalt sand of superelevation: 1.2~1.8; High efficiency water reducing agent: 0.005~0.010; Copper plated steel fiber: 0.40~0.60; Water: 0.19~0.25.The present invention adopts fine cement and silicon ash as gelling material, and fine cement makes after levigate through special, and fineness is at 400m 2/ kg~450m 2/ kg; Wherein: silicon ash is mineral admixture, particle diameter, at 0.1 μ m~0.2 μ m, has effectively been filled the gap of fine cement particle, has reached compaction effect, and density is high, simultaneously because pozzolanic reaction makes intensity enhancing.The strong basalt sand of superelevation, ultimate compression strength, up to 300MPa, is the basis of preparing Ultrastrength cement based composites.Under normal curing condition, prepare height densification, the Ultrastrength cement based composites of ultimate compression strength more than 180MPa, meet the requirement of shelter of the 4th grade of bank finance equipment of the EN-1143 of European Union standard-required.
Embodiment 1: the part by weight of the relative fine cement of each component of matrix material is as follows:
Component Part by weight
Fine cement 1
Silicon ash 0.25
The strong basalt sand of superelevation 1.2
High efficiency water reducing agent 0.01
Steel fiber 0.3
Water 0.25
Adopt 40mm * 40mm * 160mm die trial moulding test block, after tested, this height is fine and close, 28 days ultimate compression strength of Ultrastrength cement based composites is 184.1MPa.
Embodiment 2:
The part by weight of the relative fine cement of each component of matrix material is as follows:
Component Part by weight
Fine cement 1
Silicon ash 0.25
The strong basalt sand of superelevation 1.2
High efficiency water reducing agent 0.01
Steel fiber 0.6
Water 0.21
Adopt 40mm * 40mm * 160mm die trial moulding test block, after tested, this height is fine and close, 28 days ultimate compression strength of Ultrastrength cement based composites is 195.6MPa.
Embodiment 3:
The part by weight of the relative fine cement of each component of matrix material is as follows:
Component Part by weight
Fine cement 1
Silicon ash 0.15
The strong basalt sand of superelevation 2.4
High efficiency water reducing agent 0.005
Steel fiber 0.3
Water 0.22
Adopt 40mm * 40mm * 160mm die trial moulding test block, after tested, this height is fine and close, 28 days ultimate compression strength of Ultrastrength cement based composites is 187.9MPa.
Embodiment 4:
The part by weight of the relative fine cement of each component of matrix material is as follows:
Component Part by weight
Fine cement 1
Silicon ash 0.15
The strong basalt sand of superelevation 2.4
High efficiency water reducing agent 0.005
Steel fiber 0.6
Water 0.19
Adopt 40mm * 40mm * 160mm die trial moulding test block, after tested, this height is fine and close, 28 days ultimate compression strength of Ultrastrength cement based composites is 192.5MPa.
In embodiment 1-3, described fine cement is by label, to be not less than silicate cement or the ordinary Portland cement of 52.5 grades to make through levigate, and fineness is at 400m 2/ kg~450m 2/ kg; The fineness of described silicon ash is not less than 20000m 2/ Kg, particle diameter is between 0.1 μ m~0.2 μ m; The ultimate compression strength of the strong basalt sand of described superelevation is 300MPa, and particle diameter is at 0mm~5mm, and granularity is subsphaeroidal, and three-dimensional dimension is even, continuous grading; Described high efficiency water reducing agent is the poly carboxylic acid series water reducer that water-reducing rate is greater than 35%; Described copper plated steel fiber is flat type steel fiber or end hook type steel fibers, and the length-to-diameter ratio of this copper plated steel fiber is not less than 40; Described water is common drinking water.

Claims (7)

1. high fine and close, a Ultrastrength cement based composites for bank finance equipment, is characterized in that, each component of this matrix material with respect to the part by weight of fine cement is:
Component Part by weight Fine cement 1 Silicon ash 0.15~0.25 The strong basalt sand of superelevation 1.2~2.4 High efficiency water reducing agent 0.005~0.010 Copper plated steel fiber 0.30~0.60 Water 0.19~0.25
2. high fine and close, Ultrastrength cement based composites for bank finance equipment according to claim 1, is characterized in that, described fine cement is by label, to be not less than silicate cement or the ordinary Portland cement of 52.5 grades to make through levigate, and fineness is at 400m 2/ kg~450m 2/ kg.
3. high fine and close, Ultrastrength cement based composites for bank finance equipment according to claim 1, is characterized in that, the fineness of described silicon ash is not less than 20000m 2/ Kg, particle diameter is between 0.1 μ m~0.2 μ m.
4. high fine and close, Ultrastrength cement based composites for bank finance equipment according to claim 1, is characterized in that, the ultimate compression strength of the strong basalt sand of described superelevation is 300MPa, and particle diameter is at 0mm~5mm.
5. high fine and close, Ultrastrength cement based composites for bank finance equipment according to claim 1, is characterized in that, described high efficiency water reducing agent is the poly carboxylic acid series water reducer that water-reducing rate is greater than 35%.
6. high fine and close, Ultrastrength cement based composites for bank finance equipment according to claim 1, is characterized in that, described copper plated steel fiber is flat type steel fiber or end hook type steel fibers, and the length-to-diameter ratio of this copper plated steel fiber is not less than 40.
7. high fine and close, Ultrastrength cement based composites for bank finance equipment according to claim 1, is characterized in that, described water is common drinking water.
CN201410119500.7A 2014-03-27 2014-03-27 High-compactness and ultrahigh-strength cement-based composite material for financial equipment in bank Pending CN103922650A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105601207A (en) * 2016-02-03 2016-05-25 黄贺明 Inorganic high-performance fiber composite material decorating plate and preparation method thereof
CN105837114A (en) * 2016-03-25 2016-08-10 四川锦顺兴新材料科技有限公司 Intelligent concrete being good in durability
CN106365515A (en) * 2016-08-29 2017-02-01 创斯达科技集团(中国)有限责任公司 Resin-based composite material for bank financial device and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103319129A (en) * 2013-06-27 2013-09-25 东南大学 Ecological nanoparticle reinforced cement based composite material and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103319129A (en) * 2013-06-27 2013-09-25 东南大学 Ecological nanoparticle reinforced cement based composite material and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105601207A (en) * 2016-02-03 2016-05-25 黄贺明 Inorganic high-performance fiber composite material decorating plate and preparation method thereof
CN105601207B (en) * 2016-02-03 2018-01-26 黄贺明 A kind of inorganic high performance composites decorative panel and preparation method thereof
CN105837114A (en) * 2016-03-25 2016-08-10 四川锦顺兴新材料科技有限公司 Intelligent concrete being good in durability
CN106365515A (en) * 2016-08-29 2017-02-01 创斯达科技集团(中国)有限责任公司 Resin-based composite material for bank financial device and preparation method thereof

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Application publication date: 20140716