CN103360002A - Cement asphalt mortar - Google Patents
Cement asphalt mortar Download PDFInfo
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- CN103360002A CN103360002A CN2013102897708A CN201310289770A CN103360002A CN 103360002 A CN103360002 A CN 103360002A CN 2013102897708 A CN2013102897708 A CN 2013102897708A CN 201310289770 A CN201310289770 A CN 201310289770A CN 103360002 A CN103360002 A CN 103360002A
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Abstract
The invention discloses a cement asphalt mortar. The cement asphalt mortar is composed of cement, fine aggregate, aluminum powder, antifoaming agent, an AE agent, swelling agent, asphalt emulsion, water and polymer mixed emulsion stabilizer, wherein the cement asphalt mortar comprises the following ingredients the parts by weight: 100 parts of cement, 220 parts of fine aggregate, 0.025 parts of aluminum powder, 0.55 parts of antifoaming agent, 0.015 parts of AE agent, 10 parts of swelling agent, 180 parts of asphalt emulsion, 25 parts of water and 20 parts of polymer mixed emulsion stabilizer. The polymer mixed emulsion is used as the stabilizer of the cement asphalt mortar to effectively improve the stability of cement asphalt mortar, reduce the material separation degree of the mortar and greatly perfect the early strength of the mortar as well.
Description
Technical field:
The present invention relates to railway construction material technology field, relate in particular to a kind of cement asphalt mortar.
Background technology:
Economic fast development has proposed high request to transportation by railroad, and our country faces the Large scale construction high-speed railway at present, and plate track of high speed railway has that structure height is low, lightweight, easily construction and the advantage such as cheap, has obtained faster development.In slab track when construction, poured into emulsification asphalt cement mortar (being called for short the CA mortar) in the gap, have rigidity and elastic filling bed course concurrently with what form homogeneous, and the CA screed can play the dual function of adjusting the track geometry precision and absorbing the vibratory impulse energy.Only have in the world at present Japan and European a few countries to have comparatively ripe CA mortar manufacturing technology.Domestic existing CA mortar existence and stability is poor, consistency is poor, cause thus the engineering time of CA mortar short, the problem such as easy layering, especially not yet touching the mark aspect stability and two of the early strengths, make actual performance and the effect of domestic CA mortar undesirable.
Summary of the invention:
The purpose of this invention is to provide a kind of cement asphalt mortar, the mixed with polymers emulsion is as the stablizer of CA mortar, but the stability of Effective Raise CA mortar material has reduced the material separation degree of mortar, simultaneously the early strength of mortar is also had greatly improved.
Purpose of the present invention is achieved through the following technical solutions:
A kind of cement asphalt mortar, be comprised of cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, water and mixed with polymers emulsion stabilizer, wherein, each ingredients weight parts proportioning is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 25 parts in water, 20 parts of mixed with polymers emulsion stabilizers.
Preferred as technique scheme, described cement is the ordinary Portland cement of strength grade 42.5R.
Preferred as technique scheme, described fine aggregate be clean, hard, does not contain earth and the detrimental impurity river sand such as organic, and maximum particle diameter is less than 2.5mm, and fineness modulus is 1.4～2.2, moisture ≯ 1%.
Preferred as technique scheme, described aluminium powder is thin phosphorus sprills, 250 orders.
Preferred as technique scheme, described defoamer is the waterborne organic silicon defoamer.
Preferred as technique scheme, described AE agent is MNC-AE type water reducing type air entrapment agent.
Preferred as technique scheme, described swelling agent is UEA type cement expansive material.
Preferred as technique scheme, described bitumen emulsion is the common cation bitumen emulsion.
Preferred as technique scheme, described mixed with polymers emulsion stabilizer is formed by water-soluble polymers monomer, polymer latex, emulsifying agent and emulsifying water, wherein, the content of each component is by weight percentage: water-soluble polymers monomer 1.0%～1.5%, polymer latex 7.0%～12.0%, emulsifying agent 1.0%～2.5%, water 85.2%～89.8%.
Polymer emulsion stablizer provided by the present invention is polymkeric substance Uniform Dispersion in bitumen emulsion, cement gel to the mechanism of modification of CA mortar, thereby makes hydration more perfect.Improved gelling material aggregate Interface situation, the polymkeric substance in the CA mortar and pitch, cement gel have formed the network that mutually runs through, and have increased the cohesive force between them, improve the stability of mortar, have reduced the material separation degree of mortar; By the formed spacial framework of polymer bridges, be conducive to dispersion and the transfer of stress simultaneously, increased the intensity of mortar.
Beneficial effect of the present invention is: add the material separation degree that the mixed with polymers emulsion stabilizer can effectively reduce the CA mortar, improve the early strength of CA mortar.
Embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and this embodiment only is used for explaining the present invention, does not consist of the restriction to protection domain of the present invention.
Embodiment 1(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 0 part of mixed with polymers emulsion, 25 parts in water.Detect stirring rear sample, data see Table 1.
Embodiment 2(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.2%: 8.0%: 1.0%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 3(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.2%: 9.0%: 1.1%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 4(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.2%: 10.0%: 1.3%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 5(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.3%: 8.0%: 1.0%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 6(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.3%: 9.0%: 1.1%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 7(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.3%: 10.0%: 1.3%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 8(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.5%: 8.0%: 1.0%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 9(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.5%: 9.0%: 1.1%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Embodiment 10(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 20 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.5%: 10.0%: 1.3%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 1.
Table 1
Prescription of the present invention can effectively reduce the material separation degree of CA mortar, the early strength of raising CA mortar as can be seen from Table 1.
Embodiment 11(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 10 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.5%: 9.0%: 1.1%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 2.
Embodiment 12(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 25 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.5%: 9.0%: 1.1%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 2.
Embodiment 13(is by weight):
Get cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, mixed with polymers emulsion, water mix and blend, the shared weight part of each raw material is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 30 parts of (polyacrylamides: polymkeric substance SBR latex: emulsifying agent=1.5%: 9.0%: 1.1%) of mixed with polymers emulsion, detect stirring rear sample, the basic mechanical design feature of CA mortar sees Table 2.
Table 2
As can be seen from Table 2, the optimal addn of mixed with polymers emulsion stabilizer is 20～25 parts (100 parts of cement, 220 parts of fine aggregates, 180 parts of bitumen emulsions) in the present invention's prescription.
Claims (9)
1. cement asphalt mortar, it is characterized in that: be comprised of cement, fine aggregate, aluminium powder, defoamer, AE agent, swelling agent, bitumen emulsion, water and mixed with polymers emulsion stabilizer, wherein, each ingredients weight parts proportioning is: 100 parts of cement, 220 parts of fine aggregates, 0.025 part of aluminium powder, 0.55 part of defoamer, 0.015 part of AE agent, 10 parts of swelling agents, 180 parts of bitumen emulsions, 25 parts in water, 20 parts of mixed with polymers emulsion stabilizers.
2. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described cement is the ordinary Portland cement of strength grade 42.5R.
3. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described fine aggregate does not contain earth and organic river sand for clean, hard, and maximum particle diameter is less than 2.5mm, and fineness modulus is 1.4～2.2, moisture ≯ 1%.
4. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described aluminium powder is thin phosphorus sprills, 250 orders.
5. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described defoamer is the waterborne organic silicon defoamer.
6. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described AE agent is MNC-AE type water reducing type air entrapment agent.
7. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described swelling agent is UEA type cement expansive material.
8. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described bitumen emulsion is the common cation bitumen emulsion.
9. according to claims 1 described a kind of cement asphalt mortar, it is characterized in that: described mixed with polymers emulsion stabilizer is formed by water-soluble polymers monomer, polymer latex, emulsifying agent and emulsifying water, wherein, the content of each component is by weight percentage: water-soluble polymers monomer 1.0%～1.5%, polymer latex 7.0%～12.0%, emulsifying agent 1.0%～2.5%, water 85.2%～89.8%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102897708A CN103360002A (en) | 2013-07-10 | 2013-07-10 | Cement asphalt mortar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102897708A CN103360002A (en) | 2013-07-10 | 2013-07-10 | Cement asphalt mortar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386987A (en) * | 2014-10-23 | 2015-03-04 | 武汉长江科创科技发展有限公司 | Modified asphalt emulsion and modified cement composite grouting material and preparation method thereof |
| CN106673487A (en) * | 2016-11-18 | 2017-05-17 | 绍兴职业技术学院 | Pervious mortar stabilizer for sponge city and preparation method of pervious mortar stabilizer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643340A (en) * | 2009-06-04 | 2010-02-10 | 浙江兰亭高科有限公司 | Stabilizer for CA mortar |
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- 2013-07-10 CN CN2013102897708A patent/CN103360002A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643340A (en) * | 2009-06-04 | 2010-02-10 | 浙江兰亭高科有限公司 | Stabilizer for CA mortar |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386987A (en) * | 2014-10-23 | 2015-03-04 | 武汉长江科创科技发展有限公司 | Modified asphalt emulsion and modified cement composite grouting material and preparation method thereof |
| CN104386987B (en) * | 2014-10-23 | 2016-11-23 | 武汉长江科创科技发展有限公司 | Composite grouting material of modified pitch emulsion and modified cement and preparation method thereof |
| CN106673487A (en) * | 2016-11-18 | 2017-05-17 | 绍兴职业技术学院 | Pervious mortar stabilizer for sponge city and preparation method of pervious mortar stabilizer |
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Application publication date: 20131023 |