CN104129957A - Basalt-fiber-mesh-enhanced high-strength high-performance sea-sand-cement-based thin plate - Google Patents

Basalt-fiber-mesh-enhanced high-strength high-performance sea-sand-cement-based thin plate Download PDF

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Publication number
CN104129957A
CN104129957A CN201410337063.6A CN201410337063A CN104129957A CN 104129957 A CN104129957 A CN 104129957A CN 201410337063 A CN201410337063 A CN 201410337063A CN 104129957 A CN104129957 A CN 104129957A
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thin plate
sand
extra
cement
template
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CN201410337063.6A
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CN104129957B (en
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邓军
谢燕
黄莉根
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广东工业大学
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Abstract

The invention discloses a basalt-fiber-mesh-enhanced high-strength high-performance sea-sand-cement-based thin plate. The thin plate is obtained by compounding a sea-sand-cement-based material and basalt fiber meshes. According to the invention, water, cement, sea sand, and a high-efficiency water-reducing agent with a mass ratio of 0.45:1:2.23:0.012 are uniformly mixed, such that sea sand cement mortar is prepared; one or two layers of basalt fiber meshes are placed in a template at a position of 1/2 of the thickness of the template; the uniformly mixed cement mortar is uniformly cast into the template, and the template is slightly vibrated; the cast material is covered by using a plastic film, and curing is carried out for 24h; the template is removed, and the obtained plate is cured to the 28th day in a curing room. The thin plate has the characteristics such as small self-weight, high strength, good cracking resistance, good flexure-tension resistance, good water resistance, good weatherability, high-temperature resistance, and the like. The thin plate is suitable to be used as a building wall exterior panel, a decorative panel, an external attached thin wall structure, and the like. Because sea sand and basalt fiber meshes are used, sea sand resource is fully utilized, and steel-bar corrosion is prevented. The thin plate provided by the invention is especially suitable for wall structures of coastal buildings.

Description

A kind of high-strength and high performance sea sand cement base thin plate that utilizes basalt fibre net to strengthen

Technical field

The present invention relates to building material field, specifically, is the high-strength and high performance sea sand cement base thin plate that one utilizes basalt fibre net (being called for short BF net) to strengthen.

Background technology

Cement concrete is the material of construction of current usage quantity maximum, but the cement concrete that in construction, conventional starting material and making method often make to make exist intensity low, from problems such as great, poor durability, be not suitable for the needs of modern architecture development.In addition, the problem of building trade river sand resource scarcity is in recent years very serious, and China's sea sand aboundresources, if can rationally utilize the crisis that can greatly alleviate river sand resource provisioning anxiety.

The recycling of sea sand has been extremely urgent thing, but as after washing, utilization will make building cost greatly increase, if and directly application in construction work often causes again serious steel bar corrosion problem, greatly affect the weather resistance of buildings and threaten people life property safety.It is toughness reinforcing that traditional construction work is used reinforcing bar, woven wire etc. to strengthen cement concrete material, is mainly to have a surplus and the problem of bending tensile strength deficiency for Compressive Strength of Cement-based Materials intensity.Also there are in recent years the research and the engineering application that utilize carbon fiber, glass fibre etc. to strengthen cement-based material or concrete material, and result of use is good, but the gordian technique of these filamentary materials and production and sales all rest in foreign enterprise hand, not only expensive, be also unfavorable for correlation technique popularization and use on a large scale in China's construction work.

At present, China's independent research goes out basalt fibre strongthener, it is a kind of novel inorganic environment-friendly and green high performance fibre material, it is not only moderate, and there is good weather resistance and chemical stability, also having excellent electrical insulating property, flame resistant, the performance such as high temperature resistant, is a kind of fiber reinforced material of reaching advanced world standards.As basalt fibre instead of steel concrete steel silk screen, carbon fiber etc. are applied in building industry, not only in construction quality and cost, can meet the actual demand of China's construction work, can fundamentally avoid again the generation of steel bar corrosion.

In sum, develop a kind of extra large sand cement sill that utilizes basalt fibre net to strengthen, not only can realize the recycling (processing without washing desalination) to extra large sand, can also ensure all energy engineering demands of intensity, weather resistance and cost of relevant cement-based material, and be conducive to applying of basalt fiber material.

Summary of the invention

The present invention be directed to the problem that current cement-based material and building trade exist, utilize extra large sand configuration sand-cement slurry, utilize basalt fibre net to strengthen toughness reinforcing, produce a kind of cement based thin plate of high-strength and high performance.This thin plate has not only effectively utilized extra large sand resource, also have that thickness is little, intensity is high, bending resistance draws that performance is good, compactness is strong, water-intake rate is low, good endurance, resistance to elevated temperatures and the excellent properties such as fire resistance is good, and has fundamentally prevented the generation of steel bar corrosion.Reaching under the requirement of same intensity and performance, use this cement-based material can greatly reduce the thickness of correlated product and structure, therefore this thin plate be particularly suitable for being used as construction wall decoration panel, build plug-in curtain wall, can also be used to make New Composite Wall-slab; Owing to having used extra large sand to substitute river sand in invention, substitute woven wire etc. with basalt fibre net, therefore this thin plate material is particularly useful for river sand and lacks and the building construction of the resourceful coastland of extra large sand.

The present invention is achieved in the following ways: the extra large sand of choosing certain fineness scope, even by certain quality mixture ratio (water: cement: extra large sand: high efficiency water reducing agent=0.45: 1: 2.23: 0.012) mix with cement, water, high efficiency water reducing agent (water-reducing rate >=30%), make extra large sand cement mortar; Make certain thickness template, in template, basalt fibre net is placed at 1/2nd thickness places, uniform above-mentioned mix sand-cement slurry is poured into the mold equably in plate and vibrated a little, after building, use the demoulding after 24 hours of plastics film covering curing, put into 20 DEG C of temperature, the curing room of humidity 90% continues maintenance to 28 day again.

The fineness scope of described extra large sand is 0.063mm~0.355mm.

The water-reducing rate of described high efficiency water reducing agent, for being greater than 30%, can be adjusted its volume according to the water-reducing rate of high efficiency water reducing agent.

Described cement is ordinary Portland cement, can select by requirement of strength the cement of different varieties and different intensity grades, for improving the outward appearance of thin plate, can use the substituted for silicon such as white cement, colored cement acid salt cement.

Described certain thickness template, minimum size is 6mm, also can be according to engineering practical situation increased in size.

Described basalt fibre net can be placed one deck or two-layer, places when two-layer and overlaps by warp-weft two-way.

The size of mesh opening of described basalt fibre net is 10mm × 10mm, also can select according to practical situation the fibrous reticulum of different size of mesh opening.

By mixing the extra large sand that fineness scope is 0.063mm~0.355mm, can effectively improve the density of sand-cement slurry, improve intensity and weather resistance etc.; By mixing high efficiency water reducing agent, can ensure the mobility of sand-cement slurry, be conducive to construction molding; By placing basalt fibre net, can improve the particularly bending tensile strength of intensity of cement based thin plate, and the endurance issues such as initiation steel bar corrosion that can not react with extra large sand.It is a kind of material of high-strength and high performance that this basalt strengthens extra large sand cement base thin plate.

Compared with existing traditional sand-cement slurry, beneficial effect of the present invention is:

(1) utilize extra large sand to substitute river sand, can alleviate the problem of current river sand resource scarcity, can effectively utilize again extra large sand resource, and without washing, reduce construction costs, apply easyly, have a extensive future;

(2) adopt fineness at the extra large sand of 0.063mm~0.355mm scope, can improve the tap density of aggregate, thereby the compactness of cement-based material is improved, and the endurance issues such as the intensity of correlated product, impervious, anti-carbonization are also significantly improved.

Compared with existing cement base plate, beneficial effect of the present invention is:

(1) utilize basalt fibre net instead of steel silk screen, fine steel rib etc. to strengthen, not only make the bending resistance of correlated product draw performance, resistance to cleavage etc. to be guaranteed, and fundamentally avoid the problem of steel bar corrosion, be applicable to exterior wall and the plug-in thin-wall construction of coastland and the buildings under ocean environment;

(2) because basalt fibre itself has splendid corrosion resistance nature, therefore do not need too thick protective layer, what make that thin plate can do very is light and thin, can effectively reduce the thickness of material deadweight and relative configurations, be particularly suitable for being used as construction wall decoration panel, build plug-in curtain wall, can also be used to make New Composite Wall-slab etc.;

(3) compared with utilizing the strongtheners such as carbon fiber, basalt fibre belongs to the material that China has independent intellectual property right, purchase convenience, reasonable price and excellent performance, the present invention is conducive to reduce construction costs, is also conducive to applying of basalt fiber material.

Brief description of the drawings

Fig. 1 is the present invention---a kind of schematic diagram of the high-strength and high performance sea sand cement base thin plate that utilizes the enhancing of basalt fibre net.

Fig. 2 is Fig. 1 I-I sectional view.

Fig. 3 is the construction technology process that basalt fibre net strengthens extra large sand cement base thin plate.

Number in the figure explanation: 1-basalt fibre net; 2-sea sand cement sill.

Embodiment

Specific embodiment of the invention step is as follows:

(1) the extra large sand of transporting back from sandpit is dried naturally, the impurity such as shell are screened out, and filter out the extra large sand within the scope of fineness 0.063mm~0.355mm;

(2) by PO42.5 silicate cement, cement, extra large sand, high efficiency water reducing agent 0.45: 1: 2.23 in mass ratio: 0.012 in mortar mixer mix even, obtain extra large sand cement mortar; Performance to this sea sand cement mortar is tested, and test result is listed in table 1;

(3) follow closely respectively the template of 6mm processed, 8mm and 10mm thickness plate and clean out, the basalt fibre net that is 10mm × 10mm respectively at thickness of slab 1/2 place's placement one deck or two-layer (the overlapping placement of two layer web warp-weft two-way) size of mesh opening, and be fixed in template;

(4) extra large sand cement mortar is poured into the mold in plate, and suitably vibrate; Template surface covered with plastic film maintenance demoulding after 24 hours of building, then put into 20 DEG C of temperature, the curing room maintenance to 28 day of humidity 90%; The basalt fibre making is strengthened to extra large sand cement base thin plate performance and test, test result is listed in table 2.

Table 1

Cubic compressive strength 45MPa Water-intake rate 2.5% Fire performance At 600 DEG C of temperature, calcination 5h still can keep its integrity Resistance to elevated temperatures Through keeping 3h under 1000 DEG C of high temperature, test block still can be protected its integrity

Table 2

From above thickness, the fibroreticulate thin plate specimen test of different number of plies result, while placing one deck basalt fibre net, poor-performing is drawn in the bending resistance of thin plate, placing its bending resistance of thin plate thin plate of two-layer basalt fibre net draws performance all to show excellence, and the thin plate of thickness of slab 6mm, 8mm and 10mm is along with thickness of slab increases its tensile strength and bending strength slightly increases, but increase little; Consider the extra large sand cement base thin plate that can select the thick two-layer basalt fibre net of 6mm to strengthen from the principle of economy.

The present invention---basalt fibre mesh grid strengthens extra large sand cement base thin plate and has good resistance to cleavage and good water resistance, and there is lightweight, erosion resistance, the obvious feature of durability performance, and there is good Bending tension and learn performance, be suitable as external wall and external-hanging structure etc., there is larger application value, especially can be applied in the building structure being in the corrosive atmosphere such as ocean, coastland, be the green thin plate material of a kind of novel environment friendly.

Claims (9)

1. a high-strength and high performance sea sand cement base thin plate that utilizes basalt fibre net to strengthen, is characterized in that: choose water, cement, extra large sand, high efficiency water reducing agent 0.45: 1: 2.23 in mass ratio: 0.012 mix is even, makes extra large sand cement mortar; In template, basalt fibre nets are placed at 1/2nd thickness places, and uniform above-mentioned mix sand-cement slurry is poured into the mold equably in plate and vibrated a little, use the demoulding after 24 hours of plastics film covering curing, then put into curing room and continue maintenance to 28 day after building.
2. extra large sand cement base thin plate according to claim 1, is characterized in that: extra large grain fineness number scope is 0.063mm~0.355mm.
3. extra large sand cement base thin plate according to claim 1, is characterized in that: the cubic compressive strength >=40MPa of described extra large sand cement mortar, water-intake rate < 1%.
4. extra large sand cement base thin plate according to claim 1, is characterized in that: described basalt fibre net is one deck.
5. extra large sand cement base thin plate according to claim 1, is characterized in that: described basalt fibre net is two-layer.
6. extra large sand cement base thin plate according to claim 5, is characterized in that: described two-layer basalt fibre net is by the warp-weft two-way use that overlaps.
7. extra large sand cement base thin plate according to claim 1, is characterized in that: described template thickness >=6mm.
8. extra large sand cement base thin plate according to claim 1, is characterized in that: 20 DEG C of curing room temperature, humidity 90%.
9. extra large sand cement base thin plate according to claim 1, is characterized in that: the minimum thickness of slab of thin plate is 6mm, tensile strength > 40kN/m, bending strength > 20kN/m 2.
CN201410337063.6A 2014-07-10 2014-07-10 One kind utilizes the enhanced high-strength and high performance sea sand cement base thin plate of basalt fibre net CN104129957B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107119856A (en) * 2017-03-07 2017-09-01 孙文 Corrosion resistant concrete component and its casting method
CN108756065A (en) * 2018-05-30 2018-11-06 东南大学 A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open
CN108797893A (en) * 2018-05-30 2018-11-13 东南大学 A kind of carbon fiber mesh enhancing concrete exempts to tear column mould and preparation method thereof open
CN108797892A (en) * 2018-05-30 2018-11-13 东南大学 A kind of fiberglass gridding enhancing concrete exempts to tear column mould and preparation method thereof open
CN109293314A (en) * 2018-11-26 2019-02-01 江南大学 A kind of three-dimensional pilotaxitic texture Basalt fiber concrete and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435308A (en) * 2013-08-13 2013-12-11 中国矿业大学 Composite board and manufacturing method thereof
CN103496865A (en) * 2013-09-16 2014-01-08 北京工业大学 Hybrid FRP (Fiber Reinforced Plastic) grid enhancedreinforced ECC (Engineered Cementitious Composite) and application thereof tostructure for reinforcing concrete structure
CN103774790A (en) * 2013-12-20 2014-05-07 汪超 Novel fabricated light framework plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435308A (en) * 2013-08-13 2013-12-11 中国矿业大学 Composite board and manufacturing method thereof
CN103496865A (en) * 2013-09-16 2014-01-08 北京工业大学 Hybrid FRP (Fiber Reinforced Plastic) grid enhancedreinforced ECC (Engineered Cementitious Composite) and application thereof tostructure for reinforcing concrete structure
CN103774790A (en) * 2013-12-20 2014-05-07 汪超 Novel fabricated light framework plate

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CATHERINE G. PAPANICOLAOU ET AL.: "Mechanical Behavior Of Textile Reinforced Concrete(TRC)/Concrete Composite Elements", 《JOURNAL OF ADVANCED CONCRETE TECHNOLOGY》 *
尹龙飞等: "海砂与河砂、尾砂作为建筑用砂的比较研究", 《混凝土》 *
王忠德等: "《实用建筑材料试验手册 第3版》", 30 April 2008, 中国建筑工业出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107119856A (en) * 2017-03-07 2017-09-01 孙文 Corrosion resistant concrete component and its casting method
CN108756065A (en) * 2018-05-30 2018-11-06 东南大学 A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open
CN108797893A (en) * 2018-05-30 2018-11-13 东南大学 A kind of carbon fiber mesh enhancing concrete exempts to tear column mould and preparation method thereof open
CN108797892A (en) * 2018-05-30 2018-11-13 东南大学 A kind of fiberglass gridding enhancing concrete exempts to tear column mould and preparation method thereof open
CN109293314A (en) * 2018-11-26 2019-02-01 江南大学 A kind of three-dimensional pilotaxitic texture Basalt fiber concrete and preparation method thereof

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Inventor after: Deng Jun

Inventor after: Xie Yan

Inventor after: Guan Kunhua

Inventor after: Huang Ligen

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Inventor before: Xie Yan

Inventor before: Huang Ligen

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