CN106245864A - A kind of building roof permanent waterproof layer - Google Patents
A kind of building roof permanent waterproof layer Download PDFInfo
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- CN106245864A CN106245864A CN201610624348.7A CN201610624348A CN106245864A CN 106245864 A CN106245864 A CN 106245864A CN 201610624348 A CN201610624348 A CN 201610624348A CN 106245864 A CN106245864 A CN 106245864A
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- waterproof layer
- layer
- waterproof
- roof
- water
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- 238000004220 aggregation Methods 0.000 claims description 3
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- 238000004826 seaming Methods 0.000 claims description 3
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- 244000025254 Cannabis sativa Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000755729 Clivia Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
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- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
Abstract
The present invention relates to a kind of building roof permanent waterproof layer, the present invention uses ultra-high performance concrete, and one or many pouring construction lays globality roof waterproof layer.The waterproof layer body obtained and seam have reliable cracking resistance, impervious, waterproof and heat-insulation layer defencive function, can improve the strength and stiffness of roof structure simultaneously.This waterproof layer durable long-acting, working life is identical with building.The construction joint bonding seam of the present invention and Enhancement Method, it is possible to ensure the cracking resistance of seam interface, impervious and water resistance.The permanent waterproof layer of the present invention, laying construction is relatively easy, it is adaptable to heteroid new building roof waterproof and the maintenance of Old building roof waterproof, being especially suitable for plantation, water-retention, parking etc. has high loads flat roof deck.The cement-base composite material waterproof layer that this toughness and rigidity have both, does not has problem of aging, and Construction Joint waterproof, seepage control reliability is high, it is possible to permanently solve a difficult problem for building roof easy to leak.
Description
Technical field
The present invention relates to a kind of building roof permanent waterproof layer material and construction method, belong to construction material and construction
Technical field.
Background technology
Roof waterproof is the indispensable link in roof system building way, is also the effective way preventing rain water on roof seepage.Room
Panel is usually reinforced concrete structure, in use by natural temperature and Drought-wet change, solar irradiation, wind, sleet with
And the effect of indoor Cooling and Heat Source etc., concrete be chronically at expand with heat and contract with cold, wet rise dry-shrinkage deformed in, and the humiture in changing
Concrete slab can be made inside and outside temperature difference, psychrometric difference occur, and these temperature, green deformation and epidemic disaster difference frequently result in concrete roof
Plate cracking and infiltration are leaked.The construction joint of cast-in-place concrete roof plate, the seam etc. of prefabricated components, be other waterproof of roof boarding
Leakproof weak link.Therefore, various building roofs are both needed to arrange waterproof layer or water proof structure (as pitched roof adds draining tile layer).Right
In clivia and flat roof deck, need to arrange specially waterproof layer.Dividing by material deformability, traditional waterproof layer material is divided into flexibility
Material and the big class of rigid material two.
Most of roof waterproof layers use flexible material to lay, such as pitch binder applied coiled material or other macromolecular material coiled material,
Coat one or more layers polymer coating etc..Not accessible roof, typically to adhere one layer at flexible waterproof layer surface asphalt adhesive
Coarse sand or peastone are as protective layer；Accessible roof typically pours 30～40mm thick pea gravel concreten surface layer or use on waterproof layer
Cement mortar lays precast concrete block as protective layer.These concrete and the fragility of mortar material own is big, crack resistance is poor, past
Toward easy shrinkage cracking, waterproof layer may be caused to be torn inefficacy, the situation that roofing infiltration is even leaked occurs.Additionally, it is flexible
Roof waterproof layer is macromolecular material, and weatherability is not enough, and using several years will be aging, hardening occurs, shrinks and ftracture, waterproof layer
Can progressive damage, destruction.Investigation shows: the service life of existing roofing flexible waterproof layer is about 6～10 years.With Building life cycle
Comparing, flexible roof waterproof layer is the shortest for service life, needs running maintenance or again lays.
Rigid roofing water barrier many employings waterproof mortar is laid, or uses the concrete laying improving cracking resistance, anti-permeability performance.
By using mineral admixture, extender, polymer emulsion etc., concrete pore rate or pore communication, compensation receipts can be reduced
Contracting and raising concrete density, make concrete become and have the rigidity water-proofing material improving cracking resistance, impermeability.Current is firm
Property roof waterpoof material, mainly comprises concrete, mortar, additive or waterproofing agent, reinforcing bar and joint sealers.For rigidity
Waterproof waterproofing agent (concrete and the additive of mortar) has two big class inorganic water-proof agent and organic waterproof agent.Inorganic water-proof
Agent is to improve concrete impervious, the additive of cracking resistance, most characteristic with calcium sulphoaluminate class extender, mixes concrete
There is a compensation contraction, thus the cracking resistance of Concrete Structure, impermeability.Owing to cost is relatively low, this shrinkage-compensating mixes
Solidifying soil is wider as water-proof concrete range of application.Organic waterproof agent mostly is rubber latex and synthetic resin emulsion, common product
Plant and have cation polyvinyl butadiene rubber breast, butadiene-styrene latex, acrylics emulsion, ethylene-vinyl acetate EVA emulsion and organosilicon
Emulsion.Mix this kind of waterproofing agent mortar be referred to as " polymer cement mortar ", can improve the cracking resistance of cement mortar, impermeability and
Bonding force, is the more commonly used waterproof mortar, can be as roofing, the waterproof layer of metope.But, water-proof concrete and mortar anti-
Split, anti-permeability performance, be only to increase than normal concrete, mortar, toughness of material, deformability and anti-permeability performance be not basic
Property or significantly change, still may change in humiture, produce crack under humiture gradient effect.The humiture change width of roofing
Degree is very big, and water-proof concrete or mortar are the best as the using effect of rigid roofing water barrier, and crack and percolating water are common
Disease.
Ultra-high performance concrete material used in the present invention, laying roof waterproof layer and Construction Joint method are permissible
Make the rigidity globality roof waterproof layer of high deformability, both can overcome the shortcoming that the flexible waterproof layer waterproof life-span is short, also
The shortcoming that rigid waterproof layer is easy to crack can be overcome, be roof waterproof solution reliable, permanent.
Ultra-high performance concrete (Ultra-High Performance Concrete is called for short UHPC), because typically need to mix
Enter steel fibre, also referred to as very-high performance fibre reinforced concrete (Ultra-High Performance Fibre
Reinforced Concrete, is called for short UHPFRC).UHPC belongs to modern advanced material, has innovated cement-based material (concrete
Or mortar) and steel fibre, the composite mode of steel (reinforcing bar or high strength wire), steel fibre and reinforcing bar are greatly improved
Intensity utilization ratio in concrete, great-leap-forward progress has possessed superelevation to make all round properties of cement-based material there occurs
By force, high tenacity and superelevation durability.
" the superelevation mechanical property " of UHPC be mainly reflected in superelevation tensile strength (uniaxial tension and bending and tensile strength) and
High tenacity, this relies on the short steel fibre of addition to realize.Tensile strength may be up to 30MPa, and energy to failure reaches 1,500 ~ 40,000 N/
M(steel fibre volume content 2% ~ 12%), make UHPC stride into toughness, (energy to failure is more than 1,000J/m for the ranks of high-toughness material2Draw
It is divided into toughness material).In terms of deformability, UHPC can realize the apparent of stretching in relatively low content of steel fiber level
" strain hardening " behavior, i.e., there is many microcracks, fiber tension in single shaft tension experience elastic stage (reaching elasticity tensile strength)
Effect starts；Tension rises subsequently, enters the stiff strain hardening stage (" surrenders " of similar steel)；After reaching cracking
, there is indivedual crack in local expansion in maximum tension stress (tensile strength), and tension declines afterwards, enters softening stress-displacement stage.Steel is fine
Dimension intensity is utilized effectively, UHPC thus obtain the highest cracking resistance and impact resistance.
Another performance of UHPC most captivation is potential superelevation durability.Theoretically with according to test so far
Result of study, substantially may determine that: UHPC does not has freeze-thaw cycle, alkali-aggregate reaction (AAR) and delayed ettringite formation
(DEF) problem destroyed；In uncracked condition, the intrusion of the anti-carbonation of UHPC, resisting chloride ion penetration, resisting erosion of sulfate, anti-chemistry corruption
Erosion, the endurance quality index such as wear-resisting, compared with tradition high-strength high-performance concrete (HSC/HPC), have carrying of the order of magnitude or multiple
High.UHPC has extraordinary microcrack self-healing ability.Owing to water-cement ratio is the lowest, UHPC mixes and stirs the water yield and is only capable of for part of cement
Aquation, the inside of most cement granules is in does not has hydrated state.Therefore, water or steam enter the crack of UHPC, expose
The unhydrated part of cement granules in fracture faces " will continue " aquation；The hydrated product volume combining outside moisture is more than
Cement is somehow volume, and additional volume can cram crack.Test and engineering verification show, the crack self-healing of UHPC can not only
Enough close microcrack reduce permeability and keep good durability, the most also play the effect of " cementing " crack, the most extensive
The mechanical property that multiple concrete reduces because of crack.
Ultra-high performance concrete (UHPC) prepared by the present invention possesses high deformation and high anti-crack ability, high-tensile, height
Toughness, high impact resistance, high permeability resistant, high-durability and crack self-healing performance；Strong with the interfacial adhesion of steel with concrete
Spend the highest, be preferable roof waterpoof material, with its lay make roof waterproof layer, working life up to a century with
On, it is permanent roofing waterproof layer.
The roof waterproof layer of prior art, based on flexible material, i.e. uses waterproof roll or coating to lay waterproof layer；Just
Property roof waterproof layer because waterproof poor reliability, the most simply ancillary method of flexible waterproof layer.For the roofing flexible water longevity
The life cycle is short, the problem of rigid waterproofing inefficacy easy to crack, and people, always at research and development new material or new technique, are used for making
The more preferable roof waterproof layer of performance or water-proof system, including llowing group of materials and technology:
CN95102131.1(water-proof technology for roofing of glass-fiber reinforced expansion cement): this inventive method is with glass fibre, swollen
Swollen cement and plastic-film composite and making roof waterproof layer.This waterproof layer manufacture method is: make with fiberglass gridding cloth
Reinforcing material, often one layer of grid cloth of paving, spray an expansive cement mortar, determines lapping scrim layer number and sandblasting slurry as required
Number.
CN200910087175.X(non-shrinkage cement-based roofing material): this invention roofing is fibre-reinforced
Non-shrink mortar.Employing cement, activity and inert mineral admixture, Gypsum Fibrosum, extender, glass fibre and organic synthetic fibers,
Chemical admixture and sand etc., mix according to certain ratio.Add suitable quantity of water at the construction field (site), stir, by hand
Pave or spray regime is constructed, waterproofing layer thickness 35～50mm, point storehouse area 50～300m2。
The cracking resistance protection mortar of a CN201210434271.9(roof waterproof layer): this invention is a kind of anticracking grout,
It is made up of the PVA fiber of cement, flyash, silicon ash, sand, water reducer, water and 1.5% volume content, on waterproof roll upper berth
If the protective layer that 10mm is thick.
CN201310237703.1(a roof waterproof layer cast high impervious cracking resistance protective layer and processing technology thereof): should
Invention is a kind of anticracking grout, by cement, mineral admixture (flyash and silica flour), fine aggregate (sand), economization agent, water reducer,
Water forms with mixing polypropylene fibre (mixing two kinds of length fiber), for collectively forming structural roofing waterproof system with water-repellent paint.
In foregoing invention, all consider and make use of fiber to improve concrete or the anti-crack ability of mortar, the fiber package of use
Include glass fibre, PVA(vinal) and polypropylene fibre.Wherein, CN95102131.1(glass fiber reinforcement swelling water
Mud waterproof technology of roofing) and CN200910087175.X(non-shrinkage cement-based roofing material) it is with institute's invention material-paving
Rigid roofing water barrier.The cracking resistance protection mortar of a CN201210434271.9(roof waterproof layer) and
CN201310237703.1(a roof waterproof layer cast high impervious cracking resistance protective layer and processing technology thereof) it is with being invented
Material, as the protective layer of waterproof layer, assists waterproof simultaneously.These invention materials are identical with the present invention with the target of technical scheme,
I.e. improve service life and the reliability of roof waterproof layer, but with the performance of material of the present invention and laying construction technical scheme the most not
Identical, therefore construct complexity, the waterproof reliability of realization, the durability of waterproof layer or service life etc. at roof waterproof layer
Aspect has larger difference.Such as, in CN95102131.1 invention, construction of waterproof layer to be layered laying fibrous mesh cloth and injection is swollen
Swollen cement mortar, constructs more complicated.CN200910087175.X focuses on material, and the intensity of its mortar is relatively low, the fiber of use
Also different, it is alkali-resisting glass fiber or macromolecule material reinforcing fiber.CN201210434271.9 and CN201310237703.1 invents
It is to protect for waterproof roll or coating, is not independent waterproof layer.These inventions are with the key differences of the present invention: this
The performance that a little impervious mortars of cracking resistance or concrete are reached, in deformation and anti-crack ability, tensile strength, impermeability and durability etc.
Aspect is well below the UHPC of the present invention.
Summary of the invention
Present invention ultra-high performance concrete material-paving roof waterproof layer, and construction joint seaming method, can make
The rigidity globality roof waterproof layer of high deformability, both can overcome the shortcoming that the flexible waterproof layer waterproof life-span is short, it is also possible to
Overcome the shortcoming that rigid waterproof layer is easy to crack, be roof waterproof solution reliable, permanent.
Technical solution of the present invention is: a kind of building roof permanent waterproof layer, waterproof layer includes that one or many pours laying
Globality roofing ultra-high performance concrete waterproof layer, and rely on the construction joint seaming method of step and enhancing to ensure repeatedly to pour
The globality of waterproof layer；This waterproof layer durable long-acting, working life is identical with building；Waterproof layer body and Construction Joint have can
The cracking resistance leaned on, impervious, waterproof and heat-insulation layer defencive function, the most also have root thorn prevention, carry or reinforce the functions such as roof structure,
Roof structure can be simplified in many occasions.
The ultra-high performance concrete volume component that waterproof layer uses is as follows: 1 part of portland cement, 0.1 ~ 0.3 part of silicon ash,
0.1 ~ 0.3 part of mineral admixture, 1.0 ~ 1.5 parts of graded sands, 0.003 ~ 0.02 part of economization agent, sealing compound in 0.002 ~ 0.01 part,
0.01 ~ 0.1 part of water reducer, 1.5% ~ 5% steel fibre.
Cement, silicon ash, mineral admixture, sand, economization agent, interior sealing compound and water reducer are put in mixer in proportion,
Mix homogeneously prepares dry mixing material.Adding water than 1:0.13 ~ 0.22 by water/glue at the construction field (site) and be mixed into mixture, glue is water
Mud, silicon ash and mineral admixture amount to, and add volume ratio 1.5% ~ 5% steel fibre, stir after mixture becomes adhesive aggregation state
After go out machine and pour and lay.
Roofing essential structure is from bottom to top roof construction layer, sloping layer, heat-insulation layer, ultra-high performance concrete waterproof layer.
Ultra-high performance concrete waterproof layer is normally at above sloping layer or heat-insulation layer, for providing waterproof and heat-insulation layer protection below,
Bearing bed simultaneously as roof load such as plantation, water-retention, parking etc..The roofing of other structure, lays globality very-high performance
The waterproof layer of concrete water-proof layer other material alternative.Other functional layer can be laid at ultra-high performance concrete waterproof layer end face
Or material.
When repeatedly constructing, first water section and after water between section employing step construction joint, form seam step interface,
And steel wire or bar-mat reinforcement strengthen seam on cloth.Common non-structural roofing or planted roof use the steel wire of steel wire diameter 2 ~ 3mm
Net, structure roofing uses the bar-mat reinforcement of bar diameter 4 ~ 8mm.
Ultra-high performance concrete waterproofing layer thickness after having constructed is 15 ~ 50mm.
The hardening capacity (standard curing 28 days) of the used ultra-high performance concrete of waterproof layer to reach: comprcssive strength is more than
Or equal to 120MPa, elasticity tensile strength is more than or equal to 6MPa, and tensile strength is more than or equal to 7MPa, and ultimate tensile strength is more than
Or equal to 1.0 ‰.
Advantages of the present invention: preparation also make use of physical and mechanical property excellent for UHPC, very well including high bond strength, height
Deform and high anti-crack ability, high tenacity, high-tensile, and high permeability resistant energy, high resist chemical performance and high anti-freezing melt
Performance superelevation durability, the waterproof layer body obtained and seam have reliable cracking resistance, impervious, waterproof and heat-insulation layer protection
Function, is also equipped with root thorn prevention simultaneously, carries or reinforce the functions such as roof structure, can simplify roof structure and fall in many occasions
The cost of low system.This waterproof layer durable long-acting, working life is identical with building.One or many pouring construction of the present invention spreads
If globality roof waterproof layer, construction technology is relatively easy, it is adaptable to new building roof waterproof and the maintenance of Old building roof waterproof,
It is especially suitable for plantation, water-retention, parking etc. and has high loads flat roof deck.
1, UHPC of the present invention possesses the hardening physical and mechanical property of excellence, wherein: comprcssive strength is more than or equal to 120MPa,
Elasticity tensile strength (just splitting tension) is more than or equal to 6MPa, and tensile strength (ultimate tensile stress) is more than or equal to 7MPa, pole
Limit stretching strain is more than or equal to 1.0 ‰.That is: possess superelevation resistance to compression and tensile strength, high deformability, synchronize possess high cracking resistance
Ability, high tenacity, high impact resistance, high permeability resistant, high-durability and crack self-healing performance.With concrete and the boundary of steel
Face adhesion strength the highest (and between concrete interface binding intensity at about 3MPa), fully meeting laying waterproof layer needs
Want.
2, UHPC equally can be produced from contraction and dry shrinkage, unlike normal concrete or mortar, UHPC from
Shrinking the large percentage accounting for total contraction, dry shrinkage (contraction produced in dry environment dehydration after maintenance) is the least.The present invention
UHPC uses economization agent and interior sealing compound, and the self-constriction of UHPC is greatly lowered, and prepared is lower shrinkage UHPC material, volume
Good stability.
3, UHPC prepared by the present invention possesses adjustable working, both can pour laying with self-compaction, it is also possible to be adjusted to need
Wanting denseness to adapt to have gradient waterproof layer to lay, artificial and small-sized machine paves, wipes one's face, convenient, fast construction.Roofing is basic
Structure is from bottom to top roof construction layer, sloping layer, heat-insulation layer, ultra-high performance concrete waterproof layer.The general position of UHPC waterproof layer
Above sloping layer or heat-insulation layer, for providing waterproof and heat-insulation layer protection below, simultaneously as roof load such as plantation, store
The bearing bed of water, parking etc..The roofing of other structure, lays globality ultra-high performance concrete waterproof layer other material alternative
Waterproof layer；Other functional layer or material can be laid at ultra-high performance concrete waterproof layer end face.
4, the UHPC waterproof layer of less area roofing, can complete by once-paving；Big area roof UHPC waterproof layer can be divided into
Block, has repeatedly laid, and construction organization is flexible.
5, repeatedly lay UHPC waterproof layer, front and back lay the construction joint between block, use step of the present invention bonding to connect
Seam method (Fig. 6) processes construction joint, it may be assumed that first water section and employing step construction joint between section is watered in back zone, form seam platform
Rank interface, and on cloth, steel wire or bar-mat reinforcement strengthen seam.Common non-structural roofing or planted roof use steel wire diameter 2 ~
The steel wire of 3mm strengthens seam, and structure roofing uses the bar-mat reinforcement of bar diameter 6 ~ 8mm to strengthen seam.So, it is ensured that UHPC
The globality of waterproof layer and the cracking resistance anti-permeability performance of construction joint.
6, the UHPC waterproof layer laid, sprays sealing compound at once or cover film carries out maintenance, and maintenance operations is easy.
7, the rigidity of high deformability of the present invention, globality UHPC waterproof layer, intensity own and elastic modelling quantity are higher than common
Concrete, it is possible to increase roof strength and rigidity, possesses the bearing capacity corresponding with UHPC layer thickness.UHPC waterproofing layer thickness
15～50mm, can determine thickness according to Roof Design load, the occasion of adaptation is extensive.Such as, as planted roof waterproof layer
Time, there is the strongest root-resistant puncturing ability；Suitably arrangement of reinforcement, can be used for the waterproof of parking roofing and strengthens with structure；It is suitable also for
Water storage, installation photovoltaic panel etc. have the waterproof of load roofing.
8, a roofing UHPC waterproof layer of the present invention possesses many-sided function, the most waterproof, protection heat-insulation layer, root thorn prevention,
Carrying or reinforcing roof structure etc., it is possible to simplify roof structures in many occasions and reduce the cost of system.
Accompanying drawing explanation
Fig. 1 is the present invention accessible roof without heat-insulation layer；
Fig. 2 is the accessible roof that the present invention has heat-insulation layer；
Fig. 3 is the planted roof that the present invention has heat-insulation layer；
Fig. 4 is the present invention thick plantation layer roofing without heat-insulation layer；
Fig. 5 is the present invention compact car parking roofing without heat-insulation layer；
Fig. 6 is the step construction joint way of the present invention.First water section construction joint to construct by figure white portion, form seam platform
Rank, step width is two times (2h) of thickness；At thickness half (h/2) place pre-buried steel silk screen or bar-mat reinforcement and stretch out construction joint platform
Two times of rank thickness (2h)；Water section after subsequent construction to construct by figure dash area.
1-roof construction layer in figure；2-sloping layer；3-ultra-high performance concrete waterproof layer；4-heat-insulation layer；5-water draining and accumulating layer；
6-filter course；7-kind plants soil layer；8-vegetable layer；9-thickness plantation soil layer；10-first waters section；Section is watered after 11-；12-steel wire；
13-step interface；14-reinforcing steel bar.
Detailed description of the invention
The making of building roof UHPC waterproof layer can be divided into UHPC dry mixing material to prepare, on-the-spot mixing UHPC mixture, pour
Laying construction, construction joint, 5 job steps of maintenance are set:
1, in factory, UHPC dry mixing material is prepared: portland cement 1 part, silicon ash 0.1 ~ 0.3 part, mineral admixture 0.1 ~ 0.3 part,
Graded sand 1.0 ~ 1.5 parts, economization agent 0.003 ~ 0.02 part, interior sealing compound 0.002 ~ 0.01 part, water reducer 0.01 ~ 0.1 part, by than
Example puts into mix homogeneously in mixer, packed for standby use.
2, on-the-spot mixing UHPC mixture: UHPC dry mixing material is transported to scene.First UHPC dry mixing material is put into blender, press
Water/glue (cement, silicon ash and mineral admixture amount to) adds water mix and blend than 1:0.13 ~ 0.22, becomes adhesive aggregation state at mixture
Rear addition volume ratio 1.5% ~ 5% steel fibre, goes out machine and pours after stirring.
3, artificial or small-sized machine pours, paves and wipes one's face UHPC waterproof layer, thickness 15 ~ 50mm.UHPC waterproof layer is general
It is positioned at above sloping layer or heat-insulation layer, for providing waterproof and heat-insulation layer protection below, simultaneously as roof load such as plantation, stores
The bearing bed of water, parking etc..Typical case's roof structure is following (if roof boarding structure has looked for slope, then can cancel sloping layer):
Without the accessible roof of heat-insulation layer shown in Fig. 1, from bottom to top it is configured to: roof construction layer 1, sloping layer 2 and UHPC waterproof layer
3.UHPC waterproofing layer thickness 15～30mm.
The accessible roof of the be shown with heat-insulation layer of Fig. 2, is from bottom to top configured to: roof construction layer 1, sloping layer 2, heat-insulation layer 4
With UHPC waterproof layer 3.UHPC waterproofing layer thickness 15～30mm.
The planted roof of the be shown with heat-insulation layer of Fig. 3, is from bottom to top configured to: roof construction layer 1, sloping layer 2, heat-insulation layer 4,
UHPC waterproof layer 3, water draining and accumulating layer 5, filter course 6, plantation soil layer 7 and vegetable layer 8.UHPC waterproofing layer thickness 20～30mm.
Without the thick plantation layer roofing of heat-insulation layer shown in Fig. 4, from bottom to top it is configured to: roof construction layer 1, sloping layer 2, UHPC
Waterproof layer 3, water draining and accumulating layer 5, filter course 6, thick plantation soil layer 9 and vegetable layer 8, the thick kind that thick plantation soil layer 9 is thick not less than 100mm
Planting soil layer, surface embeds 70mm thickness plastics kind grass grate.UHPC waterproofing layer thickness 20～40mm, can be arranged in UHPC waterproof layer
Diameter 4～6mm bar-mat reinforcement, improves roof strength and rigidity.
Without the compact car parking roofing of heat-insulation layer shown in Fig. 5, be from bottom to top configured to: roof construction layer 1, sloping layer 2,
UHPC waterproof layer 3.UHPC waterproofing layer thickness 20～50mm, can arrange the reinforcing steel bar of diameter 4～10mm in UHPC waterproof layer
Net 14, improves roof strength and rigidity.
4, sectional is repeatedly constructed needs to arrange construction joint, as shown in Figure 6.Method is: formerly water section 10 edge
Setting table stepwise bonding seam, forms seam step interface 13, and step width is two times of 2h of thickness；In thickness half h/2
Place's pre-buried steel silk screen 12, steel wire diameter 2～3mm or bar-mat reinforcement (bar diameter 4～8mm), and stretch out two times of thickness of construction joint step
Degree 2h；Carry out follow-up after water section 11 laying construction.
5, after UHPC waterproof layer has been wiped one's face, spray sealing compound or cover film carry out maintenance at once.Generally (the lowest under temperature
In 15 DEG C Celsius) after maintenance one day, UHPC layer can be gone up people and carry out subsequent construction layer construction.
Claims (7)
1. a building roof permanent waterproof layer, it is characterised in that: waterproof layer includes that one or many pours laying globality room
The ultra-high performance concrete waterproof layer (3) in face, and rely on the construction joint seaming method of step and enhancing.
A kind of building roof permanent waterproof layer, it is characterised in that: the very-high performance that waterproof layer uses
Weight concrete component is as follows:
Portland cement: 1 part of silicon ash: 0.1～0.3 part of mineral admixture: 0.1～0.3 part
Graded sand: 1.0～1.5 parts of economization agents: sealing compound in 0.003～0.02 part: 0.002～0.01 part
Water reducer: 0.01～0.1 part of steel fibre: 1.5%～5% volume content.
A kind of building roof permanent waterproof layer, it is characterised in that: by cement, silicon ash, mineral blending
Material, sand, economization agent, interior sealing compound and water reducer put in mixer in proportion, and mix homogeneously prepares dry mixing material；At the construction field (site)
Adding water than 1:0.13～0.22 by water/glue and be mixed into mixture, glue is that cement, silicon ash and mineral admixture amount to, and is mixing
Compound adds volume ratio 1.5%～5% steel fibre after becoming adhesive aggregation state, goes out machine and pour and lay after stirring.
A kind of building roof permanent waterproof layer the most according to claim 1, it is characterised in that: roofing essential structure is by lower
Upper for roof construction layer (1), sloping layer (2), heat-insulation layer (4), ultra-high performance concrete waterproof layer (3)；Ultra-high performance concrete
Waterproof layer is normally at above sloping layer or heat-insulation layer, the roofing of other structure, lays globality ultra-high performance concrete waterproof
The waterproof layer of layer other material alternative；Other functional layer or material can be laid at ultra-high performance concrete waterproof layer end face.
A kind of building roof permanent waterproof layer, it is characterised in that: when repeatedly constructing, first water section
(10) and after water between section (11) employing step construction joint, form seam step interface (13), and steel wire on cloth
(12) seam is strengthened.Common non-structural roofing or planted roof use the steel wire of steel wire diameter 2～3mm, and structure roofing uses
The bar-mat reinforcement of bar diameter 4～8mm.
A kind of building roof permanent waterproof layer the most according to claim 1, it is characterised in that: the superelevation after having constructed
Can concrete water-proof layer (3) thickness be 15～50mm.
A kind of building roof permanent waterproof layer the most according to claim 1, it is characterised in that: the used superelevation of waterproof layer
The hardening capacity (standard curing 28 days) of energy concrete to reach: comprcssive strength is more than or equal to 120MPa, elasticity tensile strength
More than or equal to 6MPa, tensile strength is more than or equal to 7MPa, and ultimate tensile strength is more than or equal to 1.0 ‰.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106630860A (en) * | 2017-01-09 | 2017-05-10 | 重庆忠臬建筑科技有限公司 | Rigid self-waterproofing concrete and self-waterproofing building structure |
| CN106747112A (en) * | 2017-01-05 | 2017-05-31 | 史才军 | A kind of ultra-high performance concrete and its dry blend |
| CN107063965A (en) * | 2017-03-23 | 2017-08-18 | 上海市建筑科学研究院(集团)有限公司 | A kind of wide span house cap flexible waterproof layer construction and impervious experimental provision |
| CN107130746A (en) * | 2017-04-19 | 2017-09-05 | 中山市博兴科技开发有限公司 | It is adapted to the concrete construction roof membrane and its method of construction of roof planting |
| CN109518889A (en) * | 2018-12-06 | 2019-03-26 | 东莞市建安集团有限公司 | A kind of Asia rigid roofing structure plate structure and leakage proof construction method |
| CN111827587A (en) * | 2020-06-01 | 2020-10-27 | 上海克络蒂材料科技发展有限公司 | Thermal insulation and waterproof construction method for roof with ultralow energy consumption |
| CN115259762A (en) * | 2022-08-11 | 2022-11-01 | 江西省建材科研设计院有限公司 | Electromagnetic wave-absorbing ultrahigh-performance concrete and preparation method thereof |
| CN118110311A (en) * | 2024-01-22 | 2024-05-31 | 沈阳腾越建筑工程有限公司 | Energy-saving environment-friendly heat-insulating roof structure and construction method |
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| CN106747112A (en) * | 2017-01-05 | 2017-05-31 | 史才军 | A kind of ultra-high performance concrete and its dry blend |
| CN106747112B (en) * | 2017-01-05 | 2019-04-26 | 史才军 | A kind of ultra-high performance concrete and its dry blend |
| CN106630860A (en) * | 2017-01-09 | 2017-05-10 | 重庆忠臬建筑科技有限公司 | Rigid self-waterproofing concrete and self-waterproofing building structure |
| CN106630860B (en) * | 2017-01-09 | 2019-05-17 | 重庆忠臬建筑科技有限公司 | A kind of rigid self-waterproof concrete and self waterproofing building structure |
| CN107063965A (en) * | 2017-03-23 | 2017-08-18 | 上海市建筑科学研究院(集团)有限公司 | A kind of wide span house cap flexible waterproof layer construction and impervious experimental provision |
| CN107130746A (en) * | 2017-04-19 | 2017-09-05 | 中山市博兴科技开发有限公司 | It is adapted to the concrete construction roof membrane and its method of construction of roof planting |
| CN109518889A (en) * | 2018-12-06 | 2019-03-26 | 东莞市建安集团有限公司 | A kind of Asia rigid roofing structure plate structure and leakage proof construction method |
| CN111827587A (en) * | 2020-06-01 | 2020-10-27 | 上海克络蒂材料科技发展有限公司 | Thermal insulation and waterproof construction method for roof with ultralow energy consumption |
| CN115259762A (en) * | 2022-08-11 | 2022-11-01 | 江西省建材科研设计院有限公司 | Electromagnetic wave-absorbing ultrahigh-performance concrete and preparation method thereof |
| CN118110311A (en) * | 2024-01-22 | 2024-05-31 | 沈阳腾越建筑工程有限公司 | Energy-saving environment-friendly heat-insulating roof structure and construction method |
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