CN103253911B - Ocean-engineering anti-erosion cement-based composite material - Google Patents
Ocean-engineering anti-erosion cement-based composite material Download PDFInfo
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Abstract
The invention discloses an ocean-engineering anti-erosion cement-based composite material. The ocean-engineering anti-erosion cement-based composite material comprises the following ingredients: 400kg-600kg of cement, 200kg-400kg of wastes, 300kg-500kgs of sand, 240kg-400kg of water, 40kg-60kg of polymer emulsion, 2kg-6kg of a defoaming agent, 2kg-6kg of a curing agent, and 1kg-5kg of a water-reducing agent, as well as fibers accounting for 0.5%-5% of total weight of the cement, the wastes and the sand. The ocean-engineering anti-erosion cement-based composite material has the advantages of ultrahigh toughness, low permeability and better salt erosion resistance, and the seawater erosion resistance of concrete can be greatly enhanced. The ocean-engineering anti-erosion cement-based composite material has the advantages of a simple preparation method, easily available materials, low cost and wide application.
Description
Technical field
The present invention relates to sea-surface artificial island building material field, particularly one extra large work anti-erosion cement-base composite material.
Background technology
After harbour, seashore and marine concrete steel building are subject to marine denudation for some time, often there is the phenomenons such as cracking, containing a large amount of salts in seawater, Steel Concrete internal corrosion reinforcing bar can be penetrated into, having had a strong impact on the capital construction weather resistance at China shoreline and sea, is a great problem in marine structure field.One of important factor of shoreline and off-shore structure weather resistance is reinforcement corrosion, and chloride permeability is the main reason of reinforcement corrosion.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to develop a kind of extra large work anti-erosion cement-base composite material that effectively can prevent marine denudation reinforcing bar, extend concrete construction work-ing life.
Technical scheme of the present invention is achieved in that extra large work anti-erosion cement-base composite material, by cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent and fibrous; Each material proportioning is as follows: 400 ~ 600kg cement, 200 ~ 400kg waste, 300 ~ 500kg sand, 240 ~ 400kg water, 40 ~ 60kg polymer emulsion, 2 ~ 6kg defoamer, 2 ~ 6kg solidifying agent, 1 ~ 5kg water reducer, fiber is 0.5% ~ 5% of cement, waste and sand three total mass.
Above-mentioned extra large work anti-erosion cement-base composite material, described waste is flyash or Iron-ore Slag.
Above-mentioned extra large work anti-erosion cement-base composite material, raw material is taken according to each material proportioning, first by waste and cement dry mixing 1 ~ 3 minute, to add after sand dry mixing again 1 ~ 3 minute, stir 1 ~ 3 minute after adding 1/3rd of water inventory, stir 1 ~ 3 minute after adding 1/2nd of fiber total amount, stir 1 ~ 3 minute after adding 1/3rd of water inventory again, add remaining fiber to stir 3 ~ 8 minutes, remaining water is added stirring 1 ~ 2 minute, stirring is added 2 ~ 4 minutes after being stirred by polymer emulsion, stirring is added 1 ~ 3 minute after being stirred by defoamer, water reducer is added stirring 2 ~ 4 minutes, finally solidifying agent is added stirring 1 ~ 3 minute, obtain extra large work anti-erosion cement-base composite material.
Above-mentioned extra large work anti-erosion cement-base composite material, described fiber is one or more in polyvinyl alcohol fiber, aramid fiber, trevira, modified polyvinyl alcohol fabric and polypropylene fibre.
Above-mentioned extra large work anti-erosion cement-base composite material, described staple length is 3mm ~ 20mm, and diameter is 10 μm ~ 40 μm, and Young's modulus is 2000MPa ~ 40GPa.
Above-mentioned extra large work anti-erosion cement-base composite material, oleophylic process is carried out to described polyvinyl alcohol fiber surface and obtains modified polyvinyl alcohol fabric: described polyvinyl alcohol fiber being immersed in massfraction is 1% ~ 5% silane coupler solution, take out also room temperature after 24 ~ 48 hours to dry, soak after within 12 ~ 24 hours, carrying out oil surface process in lubricating oil, taking-up is dried, and places for subsequent use.
Above-mentioned extra large work anti-erosion cement-base composite material, described polymer emulsion is one or more in vinyl acetate-ethylene copolymerization emulsions, aqueous epoxy emulsion, styrene-butadiene emulsion, ACRYLIC EMULSION and benzene emulsion.
Above-mentioned extra large work anti-erosion cement-base composite material, described sand is middle fine sand, and granularity is 125 ~ 3000 μm.
Above-mentioned extra large work anti-erosion cement-base composite material, described cement is one or both mixing in ordinary Portland cement, aluminosulfate cement, strength of cement grade >=42.5.
Above-mentioned extra large work anti-erosion cement-base composite material, described flyash is modified coal ash, flyash modified method is as follows: preparation quality mark is 1% ~ 5% cetyl trimethylammonium bromide solution and massfraction is respectively 1% ~ 5% silane coupler solution, first according to solid-liquid mass ratio (1 ~ 5): 10, flyash is joined in cetyl trimethylammonium bromide solution, stir more than 24 hours, water washing and filtering, more than drying in oven 24h, then be (1 ~ 5) according to solid-liquid mass ratio: 10 join in silane coupler solution, stir more than 1h, put into 70 DEG C ~ 100 DEG C baking oven 24 ~ 48h again, obtain modified coal ash.
The invention has the beneficial effects as follows:
1, product anti-permeability performance of the present invention is strong, and after life-time service, generation crack quantity is few and fracture width is little, and the width in crack, in micro-scaled range, improves the anti-salt corrosion of marine structure, is a kind of desirable marine structure material.
2, add aqueous polymer emulsion and improve the anti-Self-Shrinkage Property of material, reduce the generation possibility in crack, improve the anti-permeability performance of material, thus reduce the infiltration capacity of chlorion, certain provide protection is served to the reinforcing bar of intrinsic silicon.
3, this material of the present invention sea work anti-erosion cement-base composite material has superhigh tenacity, the interpolation of polymer emulsion substantially increases the cohesiveness between material and matrix, resisted shrinkage performance, permeability resistance and anti-salt corrosion are good, and material is met water and do not disperseed, can in water repairing and strengthening.Material has resistance to fouling and abrasion resistance, can reduce building interior steel bar corrosion probability.This material configuration is simple, be easy to get, and plasticity-is higher, can be used as marine structure and repair materials.
Embodiment
Below in each embodiment: sample adopts the extra large work anti-erosion cement-base composite material of 70 × 70 × 70mm, sample is made rear room temperature and is placed after 28 days and carry out sea water immersion, immersion place is the seawater near Tianjin, and soak time is 6 months, 12 months, 18 months.Sample 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction (centimetre Water soluble chloride ion quality/2 ~ 2.5, depth of penetration place, Water soluble chloride ion average mass fraction=2 ~ 2.5,2 ~ 2.5 centimetres of depth of penetration places centimetre depth of penetration place sampling quality × 100%) after sea water immersion are measured respectively according to the Water soluble chloride ion assay of mortar " in the concrete " in standard JTJ270-98 " marine traffic engineering concrete test code ".
Embodiment 1
The present embodiment sea work anti-erosion cement-base composite material is made up of cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent and polyvinyl alcohol fiber; In the present embodiment, waste is flyash, polymer emulsion is aqueous epoxy emulsion, each material proportioning is as follows: 500kg ordinary Portland cement, 300kg flyash, 300kg sand, 320kg water, 50kg aqueous epoxy emulsion, 5kg solidifying agent, 5kg defoamer, 1kg water reducer, polyvinyl alcohol fiber is 2% of cement, flyash and sand three total mass.
The present embodiment staple length used is 3mm ~ 8mm, and diameter is 10 μm ~ 40 μm, and Young's modulus is 20GPa ~ 40GPa; Described sand is middle fine sand, and granularity is 125 ~ 300 μm.
Raw material is taken according to each material proportioning, first by waste and cement dry mixing 2 minutes, to add after sand dry mixing again 1 minute, stir 1.5 minutes after adding 1/3rd of water inventory, stir 3 minutes after adding 1/2nd of fiber total amount, stir 1 minute after adding 1/3rd of water inventory again, add remaining fiber and stir 4 minutes, remaining water is added stirring 1 minute, stirring is added 4 minutes after being stirred by polymer emulsion, stirring is added 2 minutes after being stirred by defoamer, water reducer is added stirring 4 minutes, finally solidifying agent is added stirring 1 minute, obtain extra large work anti-erosion cement-base composite material.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.072%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.082%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.093%.
Embodiment 2
The present embodiment sea work anti-erosion cement-base composite material is made up of cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent and aramid fiber; In the present embodiment, waste is Iron-ore Slag, polymer emulsion is ACRYLIC EMULSION, each material proportioning is as follows: 600kg aluminosulfate cement, 200kg Iron-ore Slag, 300kg sand, 300kg water, 40kg ACRYLIC EMULSION, 2kg defoamer, 2kg solidifying agent, 1kg water reducer, aramid fiber is 1.2% of cement, Iron-ore Slag and sand three total mass.
The present embodiment staple length used is 9mm ~ 16mm, and diameter is 17 μm ~ 28 μm, and Young's modulus is 10GPa ~ 40GPa; Described sand is middle fine sand, and granularity is 195 ~ 345 μm.
Raw material is taken according to each material proportioning, first by waste and cement dry mixing 1 minute, to add after sand dry mixing again 1 minute, stir 1 minute after adding 1/3rd of water inventory, stir 1 minute after adding 1/2nd of fiber total amount, stir 1 minute after adding 1/3rd of water inventory again, add remaining fiber and stir 3 minutes, remaining water is added stirring 1 minute, stirring is added 2 minutes after being stirred by polymer emulsion, stirring is added 1 minute after being stirred by defoamer, water reducer is added stirring 2 minutes, finally solidifying agent is added stirring 1 minute, obtain extra large work anti-erosion cement-base composite material.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.073%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.080%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.090%.
Embodiment 3
The present embodiment sea work anti-erosion cement-base composite material is made up of cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent, aramid fiber and polyvinyl alcohol fiber, in the present embodiment, waste is Iron-ore Slag, polymer emulsion is the mixture of ACRYLIC EMULSION and aqueous epoxy emulsion, each material proportioning is as follows: 400kg aluminosulfate cement, 400kg Iron-ore Slag, 500kg sand, 300kg water, the mixture (mass ratio of ACRYLIC EMULSION and aqueous epoxy emulsion is 1: 1) of 40kg ACRYLIC EMULSION and aqueous epoxy emulsion, 2.5kg defoamer, 3kg solidifying agent, 4kg water reducer, aramid fiber mixes according to mass ratio 1: 4.6 with polyvinyl alcohol fiber, after aramid fiber mixes with polyvinyl alcohol fiber, quality accounts for cement, 5% of Iron-ore Slag and sand total mass.
The present embodiment staple length used is 14mm ~ 20mm, and diameter is 10 μm ~ 40 μm, and Young's modulus is 1GPa ~ 40GPa; Described sand is middle fine sand, and granularity is 400 ~ 800 μm.
Raw material is taken according to each material proportioning, first by waste and cement dry mixing 3 minutes, to add after sand dry mixing again 3 minutes, stir 3 minutes after adding 1/3rd of water inventory, stir 3 minutes after adding 1/2nd of fiber total amount, stir 3 minutes after adding 1/3rd of water inventory again, add remaining fiber and stir 8 minutes, remaining water is added stirring 2 minutes, stirring is added 4 minutes after being stirred by polymer emulsion, stirring is added 3 minutes after being stirred by defoamer, water reducer is added stirring 4 minutes, finally solidifying agent is added stirring 3 minutes, obtain extra large work anti-erosion cement-base composite material.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.076%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.084%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.097%.
Embodiment 4
The present embodiment sea work anti-erosion cement-base composite material is made up of cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent and polyvinyl alcohol fiber; Polymer emulsion is ACRYLIC EMULSION, waste is the mixture of Iron-ore Slag and flyash, each material proportioning is as follows: 450kg ordinary Portland cement, the mixture (mass ratio of Iron-ore Slag and flyash is 1: 1.2) of 400kg Iron-ore Slag and flyash, 300kg sand, 330kg water, the mixture (mass ratio of styrene-butadiene emulsion and benzene emulsion is 1: 4) of 40kg styrene-butadiene emulsion and benzene emulsion, 4kg defoamer, 4kg solidifying agent, 3.6kg water reducer, polyvinyl alcohol fiber is by accounting for 3.2% of cement, waste and sand three total mass.
The present embodiment staple length used is 12mm ~ 24mm, and diameter is 20 μm ~ 40 μm, and Young's modulus is 20GPa ~ 40GPa; Described sand is middle fine sand, and granularity is 1200 ~ 2600 μm.
Raw material is taken according to each material proportioning, first by waste and cement dry mixing 2.5 minutes, to add after sand dry mixing again 2.5 minutes, stir 2.5 minutes after adding 1/3rd of water inventory, stir 2.5 minutes after adding 1/2nd of fiber total amount, stir 2.5 minutes after adding 1/3rd of water inventory again, add remaining fiber and stir 5 minutes, remaining water is added stirring 1.5 minutes, stirring is added 3 minutes after being stirred by polymer emulsion, stirring is added 2.5 minutes after being stirred by defoamer, water reducer is added stirring 3 minutes, finally solidifying agent is added stirring 2 minutes, obtain extra large work anti-erosion cement-base composite material.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.073%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.088%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.095%.
Embodiment 5
The present embodiment sea work anti-erosion cement-base composite material is made up of cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent, trevira, modified polyvinyl alcohol fabric and polypropylene fibre, each material proportioning is as follows: 200kg aluminosulfate cement, 200kg ordinary Portland cement, 300kg flyash, 300kg sand, 240kg water, the mixture (mass ratio of vinyl acetate-ethylene copolymerization emulsions and styrene-butadiene emulsion is 2: 3.5) of 35kg vinyl acetate-ethylene copolymerization emulsions and styrene-butadiene emulsion, 6kg defoamer, 6kg solidifying agent, 4kg water reducer, trevira, modified polyvinyl alcohol fabric and polypropylene fibre three total mass (trevira, the mass ratio of modified polyvinyl alcohol fabric and polypropylene fibre is 1: 3.5: 0.8) account for cement, 4.2% of waste and sand total mass.
Oleophylic process is carried out to polyvinyl alcohol fiber surface and obtains modified polyvinyl alcohol fabric: described polyvinyl alcohol fiber being immersed in massfraction is 1.3% silane coupler solution, take out also room temperature after 24 hours to dry, soak after within 12 hours, carrying out oil surface process in lubricating oil (20W/50), taking-up is dried, and places for subsequent use.
The present embodiment staple length used is 6mm ~ 18mm, and diameter is 20 μm ~ 40 μm, and Young's modulus is 20GPa ~ 40GPa; Described sand is middle fine sand, and granularity is 2000 ~ 3000 μm.
Raw material is taken according to each material proportioning, first by waste and cement dry mixing 2 minutes, to add after sand dry mixing again 2 minutes, stir 2 minutes after adding 1/3rd of water inventory, stir 2 minutes after adding 1/2nd of fiber total amount, stir 2 minutes after adding 1/3rd of water inventory again, add remaining fiber and stir 6 minutes, remaining water is added stirring 1.5 minutes, stirring is added 3 minutes after being stirred by polymer emulsion, stirring is added 1 minute after being stirred by defoamer, water reducer is added stirring 4 minutes, finally solidifying agent is added stirring 1 minute, obtain extra large work anti-erosion cement-base composite material.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.068%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.079%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.090%.
Embodiment 6
The difference of the present embodiment and embodiment 1 is: flyash is modified coal ash, and polyvinyl alcohol fiber is modified polyvinyl alcohol fabric.
Oleophylic process is carried out to described polyvinyl alcohol fiber surface and obtains modified polyvinyl alcohol fabric: described polyvinyl alcohol fiber being immersed in massfraction is 5% silane coupler solution, take out also room temperature after 30 hours to dry, soak after within 13.5 hours, carrying out oil surface process in lubricating oil (20W/50), taking-up is dried, and places for subsequent use.
Flyash modified method is as follows: preparation quality mark is 1.6% cetyl trimethylammonium bromide solution and massfraction is respectively 1.65% silane coupler solution, first according to solid-liquid mass ratio 1.85: 10, flyash is joined in cetyl trimethylammonium bromide solution, stir 30 hours, water washing and filtering, drying in oven 29h, then be join in silane coupler solution at 1.45: 10 according to solid-liquid mass ratio, stir 2h, put into 72.5 DEG C of DEG C of baking oven 24h again, obtain modified coal ash.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.062%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.073%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.084%.
Embodiment 7
The difference of the present embodiment and embodiment 3 is: polyvinyl alcohol fiber is modified polyvinyl alcohol fabric.Oleophylic process is carried out to described polyvinyl alcohol fiber surface and obtains modified polyvinyl alcohol fabric: described polyvinyl alcohol fiber being immersed in massfraction is 4.85% silane coupler solution, take out also room temperature after 40 hours to dry, soak after within 22 hours, carrying out oil surface process in lubricating oil (20W/50), taking-up is dried, and places for subsequent use.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.069%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.078%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.090%.
Embodiment 8
The difference of the present embodiment and embodiment 4 is: flyash is modified coal ash, and polyvinyl alcohol fiber is modified polyvinyl alcohol fabric.
Oleophylic process is carried out to described polyvinyl alcohol fiber surface and obtains modified polyvinyl alcohol fabric: described polyvinyl alcohol fiber being immersed in massfraction is 3.5% silane coupler solution, take out also room temperature after 43 hours to dry, soak after within 18 hours, carrying out oil surface process in lubricating oil (20W/50), taking-up is dried, and places for subsequent use.
Flyash modified method is as follows: preparation quality mark is 3.7% cetyl trimethylammonium bromide solution and massfraction is respectively 2.3% silane coupler solution, first according to solid-liquid mass ratio 4.6: 10, flyash is joined in cetyl trimethylammonium bromide solution, stir 32 hours, water washing and filtering, drying in oven 27h, then be join in silane coupler solution at 3.25: 10 according to solid-liquid mass ratio, stir more than 1h, then put into 95 DEG C of baking oven 43h, obtain modified coal ash.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.064%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.072%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.081%.
Embodiment 9
The difference of the present embodiment and embodiment 5 is: flyash is modified coal ash, flyash modified method is as follows: preparation quality mark is 2.35% cetyl trimethylammonium bromide solution and massfraction is respectively 2.85% silane coupler solution, first according to solid-liquid mass ratio 2.3: 10, flyash is joined in cetyl trimethylammonium bromide solution, stir 48 hours, water washing and filtering, drying in oven 26h, then be join in silane coupler solution at 3.8: 10 according to solid-liquid mass ratio, stir more than 1h, put into 85 DEG C of baking oven 24 ~ 48h again, obtain modified coal ash.
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.061%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.073%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.084%.
the comparative example of embodiment 1 ~ 5
Embodiment 10 is the comparative example of embodiment 1, and embodiment 11 is the comparative example of embodiment 2, and embodiment 12 is the comparative example of embodiment 3, and embodiment 13 is the comparative example of embodiment 4, and embodiment 14 is the comparative example of embodiment 5.
Identical with the proportioning raw materials in embodiment 1 ~ embodiment 5 respectively in embodiment 10 ~ embodiment 14, difference is: be all take raw material according to each material proportioning in embodiment 10 ~ embodiment 14, then add together and be uniformly mixed.
Embodiment 10
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.078%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.087%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.096%.
Embodiment 11
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.079%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.088%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.096%.
Embodiment 12
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.080%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.089%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.109%.
Embodiment 13
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.077%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.092%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.108%.
Embodiment 14
2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion test results: soak 6 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.073%; Soak 9 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.084%; Soak 12 months, 2 ~ 2.5 centimetres of depth of penetration place Water soluble chloride ion average mass fraction are 0.098%.
Above-described embodiment is only for the invention example is clearly described, and the restriction not to the invention embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among the protection domain of the invention claim.
Claims (8)
1. extra large work anti-erosion cement-base composite material, is characterized in that, by cement, waste, sand, polymer emulsion, water, water reducer, defoamer, solidifying agent and fibrous; Each material proportioning is as follows: 400 ~ 600kg cement, 200 ~ 400kg waste, 300 ~ 500kg sand, 240 ~ 400kg water, 40 ~ 60kg polymer emulsion, 2 ~ 6kg defoamer, 2 ~ 6kg solidifying agent, 1 ~ 5kg water reducer, fiber is 0.5% ~ 5% of cement, waste and sand three total mass; Described fiber is modified polyvinyl alcohol fabric, oleophylic process is carried out to polyvinyl alcohol fiber surface and obtains described modified polyvinyl alcohol fabric: described polyvinyl alcohol fiber being immersed in massfraction is 1% ~ 5% silane coupler solution, take out also room temperature after 24 ~ 48 hours to dry, soak after within 12 ~ 24 hours, carrying out oil surface process in lubricating oil, taking-up is dried, and places for subsequent use.
2. extra large work anti-erosion cement-base composite material according to claim 1, it is characterized in that, described waste is flyash or Iron-ore Slag.
3. extra large work anti-erosion cement-base composite material according to claim 1, it is characterized in that, raw material is taken according to each material proportioning, first by waste and cement dry mixing 1 ~ 3 minute, to add after sand dry mixing again 1 ~ 3 minute, stir 1 ~ 3 minute after adding 1/3rd of water inventory, stir 1 ~ 3 minute after adding 1/2nd of fiber total amount, stir 1 ~ 3 minute after adding 1/3rd of water inventory again, add remaining fiber to stir 3 ~ 8 minutes, remaining water is added stirring 1 ~ 2 minute, stirring is added 2 ~ 4 minutes after being stirred by polymer emulsion, stirring is added 1 ~ 3 minute after being stirred by defoamer, water reducer is added stirring 2 ~ 4 minutes, finally solidifying agent is added stirring 1 ~ 3 minute, obtain extra large work anti-erosion cement-base composite material.
4. extra large work anti-erosion cement-base composite material according to claim 1, it is characterized in that, described staple length is 3mm ~ 20mm, and diameter is 10 μm ~ 40 μm, and Young's modulus is 2000MPa ~ 40GPa.
5. extra large work anti-erosion cement-base composite material according to claim 1, is characterized in that, described polymer emulsion is one or more in vinyl acetate-ethylene copolymerization emulsions, aqueous epoxy emulsion, styrene-butadiene emulsion, ACRYLIC EMULSION and benzene emulsion.
6. extra large work anti-erosion cement-base composite material according to claim 1, it is characterized in that, described sand is middle fine sand, and granularity is 125 ~ 3000 μm.
7. extra large work anti-erosion cement-base composite material according to claim 1, is characterized in that, described cement is one or both mixing in ordinary Portland cement, aluminosulfate cement, strength of cement grade >=42.5.
8. extra large work anti-erosion cement-base composite material according to claim 2, it is characterized in that, described flyash is modified coal ash, flyash modified method is as follows: preparation quality mark is 1% ~ 5% cetyl trimethylammonium bromide solution and massfraction is respectively 1% ~ 5% silane coupler solution, first according to solid-liquid mass ratio (1 ~ 5): 10, flyash is joined in cetyl trimethylammonium bromide solution, stir more than 24 hours, water washing and filtering, more than drying in oven 24h, then be (1 ~ 5) according to solid-liquid mass ratio: 10 join in silane coupler solution, stir more than 1h, put into 70 DEG C ~ 100 DEG C baking oven 24 ~ 48h again, obtain modified coal ash.
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| CN105884306B (en) * | 2016-04-13 | 2017-12-15 | 中国船舶重工集团公司第七二五研究所 | A kind of cement-base composite material for seawater immersion environment and preparation method thereof |
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| CN110498656A (en) * | 2019-08-29 | 2019-11-26 | 武汉大学 | Seawater sea sand cement-base composite material of curing of chloride ion and preparation method thereof |
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| CN111995331A (en) * | 2020-09-14 | 2020-11-27 | 中国矿业大学(北京) | Calcareous sand reinforced cement-based material and preparation method thereof |
| CN112374791A (en) * | 2020-11-20 | 2021-02-19 | 内蒙古电力（集团）有限责任公司巴彦淖尔电业局 | Anticorrosion additive for all telegraph pole in high saline-alkali area and preparation method thereof |
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| CN101033642A (en) * | 2007-03-20 | 2007-09-12 | 李志远 | Lightweight polyphenyl composite wall board |
| CN101525226A (en) * | 2009-04-13 | 2009-09-09 | 吕运征 | Insulating dry powder mortar |
| CN101891429A (en) * | 2010-06-28 | 2010-11-24 | 上海衡峰氟碳材料有限公司 | Ceramic imitation cement component, ceramic imitation cement product and preparation method thereof |
| CN102219457A (en) * | 2011-04-01 | 2011-10-19 | 水利部交通运输部国家能源局南京水利科学研究院 | Crack-resistant and durable cement-based elastic protective mortar and preparation method thereof |
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