CN103265245A - Rubber noise-reduction wear-resistant road brick and preparation method thereof - Google Patents
Rubber noise-reduction wear-resistant road brick and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a rubber noise-reduction wear-resistant road brick and a preparation method thereof, belonging to the technical field of building materials. The invention provides a rubber noise-reduction wear-resistant road brick and a preparation method thereof, wherein the method comprises the steps of: evenly mixing 10wt%-15wt% cement, 5.0wt%-10.0wt% of pulverized fuel ash, 50wt%-70wt% of broken stones and 0.12wt%-0.8wt% of rubber powder and a proper amount of water, so as to obtain a mixture in a semi-dry state for die-filling; then evenly mixing 3.0wt%-5.0wt% of white cement, 7.0wt%-12wt% of quartz sand, 0.08wt%-0.4wt% of rubber powder, more than or equal to 0.4wt% of pigment and a proper amount of water, so as to obtain a mixture in a semi-dry state for die-filling; and washing the rubber powder in advance by adopting water and alkali solution, shaping in a jolt-squeeze manner and carrying out maintenance to obtain the rubber noise-reduction wear-resistant road brick. The method is simple, the road brick has the advantages of good compressive strength, wear resistance property, impact resistance property and noise reduction effect.
Description
Technical field
The present invention relates to a kind of rubber noise reduction wear resistant road surface brick and preparation method thereof, belong to the building material technical field.
Background technology
Clean and tidy, attractive in appearance for urban environment at present, a large amount of road surface pavement brick on common ground, and common pavior brick mainly is composited by bottom and surface layer, and bottom mainly adopts raw materials such as raw material rubble, cement and slag to make, and surface layer then raw materials such as main effluent sand, pigment and cement is made.As Chinese patent application (publication number: CN1517317A) disclose the pavior brick of a kind of high-strength colour rice one-tenth made of stones, described pavior brick is made up of precoat and initial bed, described initial bed is to be made by cement, sand and rubble, described precoat is by colored rice one-tenth made of stones, described precoat be cemented in initial bed above.Though this pavior brick has intensity and performance attractive in appearance preferably, owing to only adopt materials such as rubble, cement to make, described pavior brick is relatively poor aspect anti-impact force and wear resisting property, and easy fracture and anti-acoustic capability are also relatively poor in actual applications.And for example (publication number: CN102649633A) disclose a kind of novel post-cast strip concrete, described concrete is made of following component Chinese patent application, cement 100 weight parts; Normal sands 90～120 weight parts; Stone 270～290t weight part; Rubber 5～16 weight parts; Admixture 0.5～0.8 weight part, described admixture are water reducer; Water 30～45 weight parts.This concrete deformation performance is good, mainly adds rubber by the basis at normal concrete, and concrete deformation performance is effectively improved, and satisfies the deformation requirements of structures.Have certain deformation intensity though adopt this concrete to make pavior brick but the inventor finds, directly the ultimate compression strength performance of pavior brick reduces on the contrary behind the untreated rubber of adding.
Summary of the invention
The present invention is directed to above problems of the prior art, a kind of rubber noise reduction wear resistant road surface brick and preparation method thereof is provided, described pavior brick has the ultimate compression strength height, wear resisting property is good, shock resistance is high and the advantage of excellent noise reduction effect; Described method has the effect that technology is simple, raw material is easy to get and cost is low.
One of purpose of the present invention is achieved by the following technical programs, a kind of rubber noise reduction wear resistant road surface brick, and described pavior brick mainly is composited by bottom and surface layer, it is characterized in that, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 10wt%～15wt%; Flyash: 5.0wt%～10wt%; Rubble: 60wt%～70wt%; Rubber powder: 0.12wt%～0.8wt%;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 3.0wt%～5.0wt%; Quartz sand: 7.0wt%～12wt%; Rubber powder: 0.08wt%～0.4wt%; Pigment :≤0.4wt%;
Described rubber powder adopts water to wash with alkaline solution in advance and washs.
The mass percent of each composition described in the above-mentioned rubber noise reduction of the present invention wear resistant road surface brick is that the quality with the pavior brick of integral body is benchmark.Because the concrete that existing pavior brick adopts is a kind of hard brittle material, and wear resistance is also relatively poor, and the present invention adopts rubber powder as the partially filled material of pavior brick, because rubber has higher elasticity and toughness, in pavior brick, introduce Flexible element rubber, can effectively improve the fragility of pavior brick, improve shock resistance and wear resisting property, but, if the inventor finds directly to add rubber powder, relatively poor with concrete bonding force, the strength property of pavior brick is descended, be unfavorable for from the performance of whole assurance pavior brick.The inventor also invents and adopts water to wash in advance rubber powder and adopt alkaline solution to wash, can solve the problem of rubber powder and concrete bonding force difference, the problem that pavior brick intensity reduces behind the rubber powder of mixing can be effectively solved, thereby the strength property of pavior brick can also be guaranteed when realizing improving wear resisting property and shock resistance.
In above-mentioned rubber noise reduction wear resistant road surface brick, described rubber powder adopts the levigate rubber powder of waste and old wheel.Waste and old wheel is a kind of very black pollution thing of degraded, and environmental pollution is serious, and the present invention can effectively utilize the levigate rubber powder of junked tire, is conducive to environment protection.
In above-mentioned rubber noise reduction wear resistant road surface brick, as preferably, described bottom is mainly made by the raw materials by weight percent of following composition:
Cement: 12wt%～13wt%; Flyash: 6.0wt%～8.0wt%; Rubble: 62wt%～68wt%; Rubber powder: 0.5wt%～0.6wt%;
Described surface layer is mainly made by the raw materials by weight percent of following composition:
White cement: 3.5wt%～4.5wt%; Quartz sand: 9.0wt%～10wt%; Rubber powder: 0.1wt%～0.2wt%; Pigment: 0.1wt%～0.3wt%.
In above-mentioned rubber noise reduction wear resistant road surface brick, as preferably, the particle diameter of described rubber powder is 30 orders～60mm.Can make that rubber powder is more effective evenly to be mixed with concrete, make in the more effective formation of an inside concrete energy absorption units one by one, can more effective absorption external impact energy, improve the impact resistance of pavior brick.
In above-mentioned rubber noise reduction wear resistant road surface brick, as preferably, described alkaline solution is saturated aqueous sodium hydroxide solution.
In above-mentioned rubber noise reduction wear resistant road surface brick, as preferably, described pigment is selected from one or more in carbon black, titanium dioxide, the ferric oxide.
In above-mentioned rubber noise reduction wear resistant road surface brick, as preferably, described cement is silicate cement.
Of the present invention two are achieved by the following technical programs, a kind of preparation method of rubber noise reduction wear resistant road surface brick, and this method may further comprise the steps:
A, bottom batching: take by weighing raw material according to weight percent, the cement of raw material 10wt%～15wt%, the flyash of 5.0wt%～10wt%, the rubble of 50wt%～70wt% and the rubber powder of 0.12wt%～0.8wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
B, surface layer batching: take by weighing raw material according to weight percent, with the rubber powder of the quartz sand of the white cement of raw material 3.0wt%～5.0wt%, 7.0wt%～12wt%, 0.08wt%～0.4wt% and≤pigment of 0.4wt% adds in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
C, moulding: earlier the bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick.
In the preparation method of above-mentioned rubber noise reduction wear resistant road surface brick, as preferably, rubber powder described in steps A and the step B adopts water to wash in advance and adopts alkaline solution to wash and is specially:
Adopt earlier water that rubber powder was washed 1～2 hour, then, rubber powder is immersed in washs 22～26 hours in the alkaline solution again, get rid of alkaline solution to doing, wash with the rubber powder of clear water after to the alkaline solution washing again, dry, get the rubber powder after the washing.Adopt water to wash to rubber powder in advance and adopt alkaline solution to wash, can improve the bonding force between rubber powder and the concrete, can improve the strength property of pavior brick.As preferably, alkaline solution described above is saturated aqueous sodium hydroxide solution.
Rubber noise reduction wear resistant road surface brick of the present invention has more widely to be used, not only can be applied on the walkway, and because pavior brick of the present invention can effectively reduce the friction noise of vehicle and pavior brick, be fit to very much to be applied to the wait for bus public place of walking along the street face of parking lot, harbour.
In sum, the present invention compared with prior art has the following advantages:
1. rubber noise reduction wear resistant road surface brick of the present invention, by in concrete, adding rubber powder, and by adopting water and alkaline solution to wash to rubber powder in advance, make pavior brick have the advantage of high compression strength, wear resisting property, shock resistance and excellent noise reduction effect, the while can guarantee the strength property of pavior brick again.Than common Cc40 pavior brick, wear resisting property can improve more than 23%, and friction noise can reduce below 36%, can effectively alleviate the influence that car noise brings to people's life.
2. the preparation method of rubber noise reduction wear resistant road surface brick of the present invention has that technological process is simple, the advantage of easy handling, and raw material is easy to get, and cost is low.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail, but the present invention is not limited to these embodiment.
Embodiment 1
The rubber noise reduction wear resistant road surface brick of present embodiment is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 10wt%; Flyash: 5.0wt%; Rubble: 70wt%; Rubber powder: 0.12wt%; The particle diameter of described rubber powder is 30mm; Described rubber powder adopts water to wash with alkaline solution in advance and washs;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 5.0wt%; Quartz sand: 9.4wt%; Rubber powder: 0.08wt%; Pigment: 0.4wt%; Described rubber powder adopts water to wash with alkaline solution in advance and washs.
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of present embodiment is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 10wt%, the flyash of 5.0wt%, the rubble of 70wt% and the rubber powder of 0.12wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 5.0wt%, the quartz sand of 9.4wt%, the rubber powder of 0.08wt% and the pigment of 0.4wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 44.8MPa, wear resisting property is good, mill hole length has only 26mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 23%.Than common pavior brick (when namely not mixing rubber powder), between making an uproar, the friction of doughnut and pavior brick reduced by 36%, and shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 22%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 60% of prevailing roadway brick (when namely not mixing rubber powder).
Embodiment 2
The rubber noise reduction wear resistant road surface brick of present embodiment is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 15wt%; Flyash: 10wt%; Rubble: 60wt%; Rubber powder: 0.8wt%; The particle diameter of described rubber powder is 60mm; Described rubber powder adopts water to wash with alkaline solution in advance and washs;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 3.0wt%; Quartz sand: 11.5wt%; Rubber powder: 0.4wt%; Pigment: 0.3wt%; Described rubber powder adopts water to wash with alkaline solution in advance and washs.
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of present embodiment is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 15wt%, the flyash of 10wt%, the rubble of 60wt% and the rubber powder of 0.8wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 3.0wt%, the quartz sand of 11.5wt%, the rubber powder of 0.4wt% and the pigment of 0.3wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1.5cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 45.1MPa, wear resisting property is good, mill hole length has only 25mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 26%, has wear resistance preferably.Than common pavior brick (when namely not mixing rubber powder), between making an uproar, the friction of doughnut and pavior brick reduced by 38%, and shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 25%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 58% of prevailing roadway brick (when namely not mixing rubber powder).
Embodiment 3
The rubber noise reduction wear resistant road surface brick of present embodiment is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 12wt%; Flyash: 6.0wt%; Rubble: 66.7wt%; Rubber powder: 0.5wt%; The particle diameter of described rubber powder is 40mm; Described rubber powder adopts water to wash with alkaline solution in advance and washs;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 4.5wt%; Quartz sand: 10wt%; Rubber powder: 0.2wt%; Pigment: 0.1wt%; Described rubber powder adopts water to wash with alkaline solution in advance and washs.
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of present embodiment is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 12wt%, the flyash of 6.0wt%, the rubble of 66.7wt% and the rubber powder of 0.5wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 4.5wt%, the quartz sand of 10wt%, the rubber powder of 0.2wt% and the pigment of 0.1wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs; Described pigment adopts the pigment of this area routine to get final product, as in carbon black, titanium dioxide, the ferric oxide one or more etc.;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1.5cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 44.9MPa, wear resisting property is good, mill hole length has only 24mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 29%, has wear resistance preferably.Than common pavior brick (when namely not mixing rubber powder), between making an uproar, the friction of doughnut and pavior brick reduced by 35%, and shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 27%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 55% of prevailing roadway brick (when namely not mixing rubber powder).
Embodiment 4
The rubber noise reduction wear resistant road surface brick of present embodiment is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 13wt%; Flyash: 8.0wt%; Rubble: 62wt%; Rubber powder: 0.6wt%; The particle diameter of described rubber powder is 40mm; Described rubber powder adopts water to wash with alkaline solution in advance and washs;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 4.0wt%; Quartz sand: 12wt%; Rubber powder: 0.1wt%; Pigment: 0.3wt%; Described rubber powder adopts water to wash with alkaline solution in advance and washs.
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of present embodiment is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 12wt%, the flyash of 6.0wt%, the rubble of 66.7wt% and the rubber powder of 0.5wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs; In particular, adopt water that rubber powder was washed 1～2 hour earlier described rubber powder, then, again rubber powder is immersed in and washed in the saturated aqueous sodium hydroxide solution 22～26 hours, get rid of alkaline solution to doing, the rubber powder after with clear water alkaline solution being washed again washes 2 times, removes the alkali lye that remains in the rubber powder surface, dry, get the rubber powder after the washing;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 4.5wt%, the quartz sand of 10wt%, the rubber powder of 0.2wt% and the pigment of 0.1wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs; In particular, adopt water that rubber powder was washed 1～2 hour earlier described rubber powder, then, again rubber powder is immersed in and washed in the saturated aqueous sodium hydroxide solution 22～26 hours, get rid of alkaline solution to doing, the rubber powder after with clear water alkaline solution being washed again washes 2 times, removes the alkali lye that remains in the rubber powder surface, dry, get the rubber powder after the washing;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1.0cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 44.6MPa, wear resisting property is good, mill hole length has only 25.5mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 25%, has wear resistance preferably.Than common pavior brick (when namely not mixing rubber powder), between making an uproar, the friction of doughnut and pavior brick of the present invention reduced by 35%, shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 26%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 61% of prevailing roadway brick (when namely not mixing rubber powder).
Embodiment 5
The rubber noise reduction wear resistant road surface brick of present embodiment is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 10wt%; Flyash: 5.5wt%; Rubble: 70wt%; Rubber powder: 0.22wt%; The particle diameter of described rubber powder is 40mm; Described rubber powder adopts water to wash with alkaline solution in advance and washs; Described cement is silicate cement;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 5.0wt%; Quartz sand: 9.0wt%; Rubber powder: 0.08wt%; Pigment: 0.2wt%; Described rubber powder adopts water to wash with alkaline solution in advance and washs; Described pigment adopts conventional pigment to get final product;
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of present embodiment is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 10wt%, the flyash of 5.5wt%, the rubble of 70wt% and the rubber powder of 0.22wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs; In particular, adopt water that rubber powder was washed 2 hours earlier described rubber powder, then, again rubber powder is immersed in and washed in the saturated aqueous sodium hydroxide solution 24 hours, get rid of alkaline solution to doing, the rubber powder after with clear water alkaline solution being washed again washes 2 times, removes the alkali lye that remains in the rubber powder surface, dry, get the rubber powder after the washing;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 5.0wt%, the quartz sand of 9.0wt%, the rubber powder of 0.08wt% and the pigment of 0.2wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs; In particular, adopt water that rubber powder was washed 2 hours earlier described rubber powder, then, again rubber powder is immersed in and washed in the saturated aqueous sodium hydroxide solution 24 hours, get rid of alkaline solution to doing, the rubber powder after with clear water alkaline solution being washed again washes 2 times, removes the alkali lye that remains in the rubber powder surface, dry, get the rubber powder after the washing;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1.0cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 44.7MPa, wear resisting property is good, mill hole length has only 25mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 26%, has wear resistance preferably.Than common pavior brick (when namely not mixing rubber powder), between making an uproar, the friction of doughnut and pavior brick of the present invention reduced by 40%, shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 24.6%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 57% of prevailing roadway brick (when namely not mixing rubber powder).
Comparative example 1
The rubber noise reduction wear resistant road surface brick of this comparative example is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 10wt%; Flyash: 5.0wt%; Rubble: 70wt%; Rubber powder: 0.12wt%; The particle diameter of described rubber powder is 30mm; Described rubber powder does not wash with alkaline solution through water and washs;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 5.0wt%; Quartz sand: 9.4wt%; Rubber powder: 0.08wt%; Pigment: 0.4wt%; Described rubber powder adopts water to wash with alkaline solution in advance and washs.
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of this comparative example is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 10wt%, the flyash of 5.0wt%, the rubble of 70wt% and the rubber powder of 0.12wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 5.0wt%, the quartz sand of 9.4wt%, the rubber powder of 0.08wt% and the pigment of 0.4wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 31.1MPa, wear resisting property is good, mill hole length is 30mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 12%; Than common pavior brick (when namely not mixing rubber powder), the friction of the pavior brick that obtains in doughnut and the comparative example 1 has reduced by 25% between making an uproar, shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 21%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 72% of prevailing roadway brick (when namely not mixing rubber powder).
Comparative example 2
The rubber noise reduction wear resistant road surface brick of this comparative example is composited by bottom and surface layer, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 10wt%; Flyash: 5.0wt%; Rubble: 70wt%; Rubber powder: 0.12wt%; The particle diameter of described rubber powder is 30mm; Described rubber powder adopts water to wash in advance and does not adopt alkaline solution to wash;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 5.0wt%; Quartz sand: 9.4wt%; Rubber powder: 0.08wt%; Pigment: 0.4wt%; Described rubber powder adopts water to wash in advance and does not adopt alkaline solution to wash.
The preparation method of the above-mentioned rubber noise reduction wear resistant road surface brick of this comparative example is as follows:
Bottom batching: take by weighing raw material according to weight percent, the cement of raw material 10wt%, the flyash of 5.0wt%, the rubble of 70wt% and the rubber powder of 0.12wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould;
Surface layer batching: take by weighing raw material according to weight percent, the white cement of raw material 5.0wt%, the quartz sand of 9.4wt%, the rubber powder of 0.08wt% and the pigment of 0.4wt% are added in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould;
Moulding: earlier above-mentioned bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick, and the surface layer height of described pavior brick is 1cm.
The performance of the pavior brick that obtains is tested, the ultimate compression strength of this pavior brick almost reaches the intensity when not mixing rubber powder, ultimate compression strength is 37.3MPa, wear resisting property is good, mill hole length has only 28mm, cheating length than common pavior brick (when namely not mixing rubber powder) mill is 34mm, has improved about 18%.Than common pavior brick (when namely not mixing rubber powder), between making an uproar, the friction of doughnut and pavior brick reduced by 30%, and shock resistance is not than common pavior brick (when namely mixing rubber powder), and pavior brick shock resistance of the present invention has improved 22%.The anti-fatigue performance aspect under equal test conditions, experiences the identical number of times test that rolls, and the pavior brick that mixes rubber powder of the present invention destroys quantity and only is 65% of prevailing roadway brick (when namely not mixing rubber powder).
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made detailed explanation and has quoted some specific embodiments as proof, to those skilled in the art, only otherwise leave that the spirit and scope of the present invention can be done various variations or correction is obvious.
Claims (9)
1. rubber noise reduction wear resistant road surface brick, described pavior brick mainly is composited by bottom and surface layer, it is characterized in that, and described bottom is mainly made by following composition raw materials by weight percent:
Cement: 10wt%～15wt%; Flyash: 5.0wt%～10wt%; Rubble: 60wt%～70wt%; Rubber powder: 0.12wt%～0.8wt%;
Described surface layer is mainly made by following composition raw materials by weight percent:
White cement: 3.0wt%～5.0wt%; Quartz sand: 7.0wt%～12wt%; Rubber powder: 0.08wt%～0.4wt%; Pigment :≤0.4wt%;
Described rubber powder adopts water to wash with alkaline solution in advance and washs.
2. rubber noise reduction wear resistant road surface brick according to claim 1 is characterized in that described bottom is mainly made by the raw materials by weight percent of following composition:
Cement: 12wt%～13wt%; Flyash: 6.0wt%～8.0wt%; Rubble: 62wt%～68wt%; Rubber powder: 0.5wt%～0.8wt%;
Described surface layer is mainly made by the raw materials by weight percent of following composition:
White cement: 3.5wt%～4.5wt%; Quartz sand: 9.0wt%～10wt%; Rubber powder: 0.5wt%～0.8wt%; Pigment: 0.1wt%～0.3wt%.
3. according to any described rubber noise reduction wear resistant road surface brick of claim 1-2, it is characterized in that the particle diameter of described rubber powder is 30 orders～60mm.
4. according to any described rubber noise reduction wear resistant road surface brick of claim 1-2, it is characterized in that described alkaline solution is saturated aqueous sodium hydroxide solution.
5. according to any described rubber noise reduction wear resistant road surface brick of claim 1-2, it is characterized in that described pigment is selected from one or more in carbon black, titanium dioxide, the ferric oxide.
6. rubber noise reduction wear resistant road surface brick according to claim 1 is characterized in that described cement is silicate cement.
7. the preparation method of a rubber noise reduction wear resistant road surface brick is characterized in that this method may further comprise the steps:
A, bottom batching: take by weighing raw material according to weight percent, the cement of raw material 10wt%～15wt%, the flyash of 5.0wt%～10wt%, the rubble of 50wt%～70wt% and the rubber powder of 0.12wt%～0.8wt% are joined in the stirrer, add an amount of water again, mix, make underlying material be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
B, surface layer batching: take by weighing raw material according to weight percent, with the rubber powder of the quartz sand of the white cement of raw material 3.0wt%～5.0wt%, 7.0wt%～12wt%, 0.08wt%～0.4wt% and≤pigment of 0.4wt% adds in another stirrer, add an amount of water again, mix, make the surface layer batching be in the leather hard of dress mould; Rubber powder described above adopts water to wash with alkaline solution in advance and washs;
C, moulding: earlier the bottom batching is added brick pressing machine punching block bottom, and then add the surface layer batching in punching block on the bottom batching, the moulding of jolt-squeezing, maintenance obtain rubber noise reduction wear resistant road surface brick.
8. the preparation method of rubber noise reduction wear resistant road surface brick according to claim 7 is characterized in that, rubber powder described in steps A and the step B adopts water to wash in advance and adopts alkaline solution to wash and is specially:
Adopt earlier water that rubber powder was washed 1～2 hour, then, rubber powder is immersed in washs 22～26 hours in the alkaline solution again, get rid of alkaline solution to doing, wash with the rubber powder of clear water after to the alkaline solution washing again, dry, get the rubber powder after the washing.
9. according to the preparation method of claim 7 or 8 described rubber noise reduction wear resistant road surface bricks, it is characterized in that described alkaline solution is saturated aqueous sodium hydroxide solution.
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| CN108675720A (en) * | 2018-06-05 | 2018-10-19 | 张芸 | A kind of preparation method of reducing noise rubber pavior brick |
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