Summary of the invention
Technical problem to be solved by this invention provides a kind of good comprehensive properties magnesia oxychloride cement.
Magnesia oxychloride cement of the present invention comprises the component of following weight proportion: 25~55 parts of light burnt powders, 25~50 parts in magnesium chloride, 1~10 part of urea-formaldehyde resin, 1~10 part of benzene emulsion, 10~20 parts of silicon powders, 15~50 parts of talcum powder, 5~30 parts in flyash, 1~15 part of stalk, 0~40 part of quartz sand, 1~8 part of short glass fiber, 1~2 part of properties-correcting agent.
Wherein, magnesia oxychloride cement of the present invention also can be made up of the component of following weight proportion: 25~55 parts of light burnt powders, 25~50 parts in magnesium chloride, 1~10 part of urea-formaldehyde resin, 1~10 part of benzene emulsion, 10~20 parts of silicon powders, 15~50 parts of talcum powder, 5~30 parts in flyash, 1~15 part of stalk, 0~40 part of quartz sand, 1~8 part of short glass fiber, 1~2 part of properties-correcting agent.
Further, the weight proportion of the component of magnesia oxychloride cement of the present invention is preferably: 39.1 parts of light burnt powders, 28.7 parts in magnesium chloride, 1.6 parts of urea-formaldehyde resins, 5 parts of benzene emulsions, 7.8 parts of silicon powders, 13 parts of talcum powder, 5.2 parts in flyash, 1.6 parts of stalks, 1.6 parts of short glass fibers, 0.9 part of properties-correcting agent.
Further, better for the performance that makes magnesia oxychloride cement of the present invention, its component also comprises an amount of bamboo reinforcement and an amount of glass cloth.
Further, magnesia oxychloride cement of the present invention preferably is made up of the component of following weight proportion: 39.1 parts of light burnt powders, 28.7 parts in magnesium chloride, 1.6 parts of urea-formaldehyde resins, 5 parts of benzene emulsions, 7.8 parts of silicon powders, 13 parts of talcum powder, 5.2 parts in flyash, 1.6 parts of stalks, 1.6 parts of short glass fibers, 0.9 part of properties-correcting agent, an amount of bamboo reinforcement and an amount of glass cloth.
Wherein, the properties-correcting agent that magnesia oxychloride cement is commonly used all is suitable for the present invention, for the performance that makes cement of the present invention better, above-mentioned properties-correcting agent preferably is made up of following components in weight percentage: 1~2 part of sodium polyphosphate, 0.5~1.5 part in ferrous sulfate, 1.0~2 parts of sugared calcium, 0.5~1.5 part of Sodium Silicofluoride, 0.5~1.5 part of Sodium dodecylbenzene sulfonate, 1~2 part of oxalic acid, 0.5~1.5 part of phosphoric acid and proper quantity of defoaming agent.Above-mentioned properties-correcting agent more preferably is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and proper quantity of defoaming agent.
Wherein, the defoamer in the above-mentioned properties-correcting agent can be defoamer commonly used, and in order to make the properties-correcting agent performance better, with the performance of final raising magnesia oxychloride cement of the present invention, above-mentioned defoamer is preferably tributyl phosphate.
Magnesia oxychloride cement of the present invention can prepare guardrail according to ordinary method, and promptly, add water and make slurry earlier with each component mixing, then in die for molding, maintenance, the demoulding, maintenance after the demoulding, the examination and test of products is qualified to get final product.
The guardrail of cement production of the present invention, the existing Cement guard bar of its weight ratio obviously want light, and its intensity can be up to state standards, and cost is lower relatively, and not perishable, its water-intake rate is low, and bending strength height, anti-soft impulse, frost resistance, surface halide accumulation resistance are all better.Magnesia oxychloride cement of the present invention has broad application prospects for this area provides a kind of new selection.
Embodiment
Magnesia oxychloride cement of the present invention comprises the component of following weight proportion: 25~55 parts of light burnt powders, 25~50 parts in magnesium chloride, 1~10 part of urea-formaldehyde resin, 1~10 part of benzene emulsion, 10~20 parts of silicon powders, 15~50 parts of talcum powder, 5~30 parts in flyash, 1~15 part of stalk, 0~40 part of quartz sand, 1~8 part of short glass fiber, 1~2 part of properties-correcting agent.
Wherein, magnesia oxychloride cement of the present invention also can be made up of the component of following weight proportion: 25~55 parts of light burnt powders, 25~50 parts in magnesium chloride, 1~10 part of urea-formaldehyde resin, 1~10 part of benzene emulsion, 10~20 parts of silicon powders, 15~50 parts of talcum powder, 5~30 parts in flyash, 1~15 part of stalk, 0~40 part of quartz sand, 1~8 part of short glass fiber, 1~2 part of properties-correcting agent.
Further, the weight proportion of the component of magnesia oxychloride cement of the present invention is preferably: 39.1 parts of light burnt powders, 28.7 parts in magnesium chloride, 1.6 parts of urea-formaldehyde resins, 5 parts of benzene emulsions, 7.8 parts of silicon powders, 13 parts of talcum powder, 5.2 parts in flyash, 1.6 parts of stalks, 1.6 parts of short glass fibers, 0.9 part of properties-correcting agent.
Further, better for the performance that makes magnesia oxychloride cement of the present invention, its component also comprises an amount of bamboo reinforcement and an amount of glass cloth.
Further, magnesia oxychloride cement of the present invention preferably is made up of the component of following weight proportion: 39.1 parts of light burnt powders, 28.7 parts in magnesium chloride, 1.6 parts of urea-formaldehyde resins, 5 parts of benzene emulsions, 7.8 parts of silicon powders, 13 parts of talcum powder, 5.2 parts in flyash, 1.6 parts of stalks, 1.6 parts of short glass fibers, 0.9 part of properties-correcting agent, an amount of bamboo reinforcement and an amount of glass cloth.
Among the present invention, the effect of each component is as follows:
Light burnt powder and magnesium chloride use as solidification material; Stalk, bamboo reinforcement, glass cloth use as strongthener; Silicon powder, talcum powder, flyash, stalk use as filler; Urea-formaldehyde resin, benzene emulsion, short glass fiber, acting as property-modifying additive of properties-correcting agent are used, to overcome the easy scum of material, to return defectives such as halogen, distortion, anti-outlet capacity difference.
Wherein, the bamboo reinforcement in the said components can determine that it uses density according to concrete needs, and the glass cloth in the said components can be determined its mesh and lamination number according to concrete needs.
Wherein, the properties-correcting agent that magnesia oxychloride cement is commonly used all is suitable for the present invention, for the performance that makes cement of the present invention better, above-mentioned properties-correcting agent preferably is made up of following components in weight percentage: 1~2 part of sodium polyphosphate, 0.5~1.5 part in ferrous sulfate, 1.0~2 parts of sugared calcium (playing delayed coagulation), 0.5~1.5 part of Sodium Silicofluoride, 0.5~1.5 part of Sodium dodecylbenzene sulfonate, 1~2 part of oxalic acid, 0.5~1.5 part of phosphoric acid and proper quantity of defoaming agent.Above-mentioned properties-correcting agent more preferably is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and proper quantity of defoaming agent (consumption of defoamer is that conventional amount used gets final product).
Wherein, oxalic acid in the said components and phosphoric acid all are the technical pure levels, and its concentration is commercially available maximum concentration.
Wherein, the defoamer in the above-mentioned properties-correcting agent can be defoamer commonly used, and in order to make the properties-correcting agent performance better, with the performance of final raising magnesia oxychloride cement of the present invention, above-mentioned defoamer is preferably tributyl phosphate.
Below in conjunction with embodiment the specific embodiment of the present invention is further described, does not therefore limit the present invention among the described scope of embodiments.
Embodiment 1 adopts magnesia oxychloride cement of the present invention to prepare guardrail
Adopt magnesia oxychloride cement to prepare guardrail, promptly, add water and make slurry earlier with each component mixing according to ordinary method, then in die for molding, maintenance, the demoulding, maintenance after the demoulding.The weight proportion of the component of used magnesia oxychloride cement of the present invention is: 25 parts of light burnt powders, 25 parts in magnesium chloride, 1 part of urea-formaldehyde resin, 1 part of benzene emulsion, 10 parts of silicon powders, 15 parts of talcum powder, 5 parts in flyash, 1 part of stalk, 1 part of quartz sand, 1 part of short glass fiber, 1 part of properties-correcting agent.Properties-correcting agent is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and an amount of tributyl phosphate.
Embodiment 2 adopts magnesia oxychloride cement of the present invention to prepare guardrail
Adopt magnesia oxychloride cement to prepare guardrail, promptly, add water and make slurry earlier with each component mixing according to ordinary method, then in die for molding, maintenance, the demoulding, maintenance after the demoulding.The weight proportion of the component of used magnesia oxychloride cement of the present invention is: 55 parts of light burnt powders, 50 parts in magnesium chloride, 10 parts of urea-formaldehyde resins, 10 parts of benzene emulsions, 20 parts of silicon powders, 50 parts of talcum powder, 30 parts in flyash, 15 parts of stalks, 40 parts of quartz sands, 8 parts of short glass fibers, 2 parts of properties-correcting agent.Properties-correcting agent is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and an amount of tributyl phosphate.
Embodiment 3 adopts magnesia oxychloride cement of the present invention to prepare guardrail
Adopt magnesia oxychloride cement to prepare guardrail, promptly, add water and make slurry earlier with each component mixing according to ordinary method, then in die for molding, maintenance, the demoulding, maintenance after the demoulding.The weight proportion of the component of used magnesia oxychloride cement of the present invention is: 39.1 parts of light burnt powders, 28.7 parts in magnesium chloride, 1.6 parts of urea-formaldehyde resins, 5 parts of benzene emulsions, 7.8 parts of silicon powders, 13 parts of talcum powder, 5.2 parts in flyash, 1.6 parts of stalks, 1.6 parts of short glass fibers, 0.9 part of properties-correcting agent.Properties-correcting agent is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and an amount of tributyl phosphate.
Embodiment 4 adopts magnesia oxychloride cement of the present invention to prepare guardrail
Adopt magnesia oxychloride cement to prepare guardrail, promptly, add water and make slurry earlier with each component mixing according to ordinary method, then in die for molding, maintenance, the demoulding, maintenance after the demoulding.The weight proportion of the component of used magnesia oxychloride cement of the present invention is: 25 parts of light burnt powders, 25 parts in magnesium chloride, 1 part of urea-formaldehyde resin, 1 part of benzene emulsion, 10 parts of silicon powders, 15 parts of talcum powder, 5 parts in flyash, 1 part of stalk, 1 part of quartz sand, 1 part of short glass fiber, 1 part of properties-correcting agent, bamboo reinforcement 4-8 part and glass cloth (mesh 5X5 and lamination several 2).Properties-correcting agent is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and an amount of tributyl phosphate.
Embodiment 5 adopts magnesia oxychloride cement of the present invention to prepare guardrail
Adopt magnesia oxychloride cement to prepare guardrail, promptly, add water and make slurry earlier with each component mixing according to ordinary method, then in die for molding, maintenance, the demoulding, maintenance after the demoulding.The weight proportion of the component of used magnesia oxychloride cement of the present invention is: 55 parts of light burnt powders, 50 parts in magnesium chloride, 10 parts of urea-formaldehyde resins, 10 parts of benzene emulsions, 20 parts of silicon powders, 50 parts of talcum powder, 30 parts in flyash, 15 parts of stalks, 40 parts of quartz sands, 8 parts of short glass fibers, 2 parts of properties-correcting agent, bamboo reinforcement 3-8 part and glass cloth (mesh 6x6 and lamination several 2) properties-correcting agent is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugared calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and an amount of tributyl phosphate.
Embodiment 6 adopts magnesia oxychloride cement of the present invention to prepare guardrail
Adopt magnesia oxychloride cement to prepare guardrail, promptly, add water and make slurry earlier with each component mixing according to ordinary method, then in die for molding, maintenance, the demoulding, maintenance after the demoulding.The weight proportion of the component of used magnesia oxychloride cement of the present invention is: 39.1 parts of light burnt powders, 28.7 parts in magnesium chloride, 1.6 parts of urea-formaldehyde resins, 5 parts of benzene emulsions, 7.8 parts of silicon powders, 13 parts of talcum powder, 5.2 parts in flyash, 1.6 parts of stalks, 1.6 parts of short glass fibers, 0.9 part of properties-correcting agent, bamboo reinforcement 3-8 part and glass cloth (mesh 5X5 and lamination several 2) properties-correcting agent is made up of following components in weight percentage: 1.5 parts of sodium polyphosphates, 1 part in ferrous sulfate, 1.5 parts of sugar calcium, 1 part of Sodium Silicofluoride, 1 part of Sodium dodecylbenzene sulfonate, 1.5 parts of oxalic acid, phosphatase 11 part and an amount of tributyl phosphate.
The test example
Guardrail to embodiment 1~6 preparation detects, and it the results are shown in Table 1.Wherein, anti-soft impulse detects and adopts the 15kg sandbag highly freely to fall from 1m, impacts guardrail 10 times.It is 25 freezing and thawing tests that frost resistance detects.
Table 1 guardrail performance test results
|
Apparent density, g/cm
3 |
Water-intake rate, % |
Bending strength, Mpa |
Anti-soft impulse |
Frost resistance |
Surface halide accumulation resistance |
Embodiment 1 |
??1.7 |
??14 |
??11 |
Impact 10 times indeformable, crack-free |
No aliquation, breakoff phenomenon such as peel off |
The no globule, nothing are got damp |
Embodiment 2 |
??1.6 |
??12 |
??13 |
Impact 10 times indeformable, crack-free |
No aliquation, breakoff phenomenon such as peel off |
The no globule, nothing are got damp |
Embodiment 3 |
??1.5 |
??14 |
??12 |
Impact 10 times indeformable, crack-free |
No aliquation, breakoff phenomenon such as peel off |
The no globule, nothing are got damp |
Embodiment 4 |
??1.6 |
??13 |
??10 |
Impact 10 times indeformable, crack-free |
No aliquation, breakoff phenomenon such as peel off |
The no globule, nothing are got damp |
Embodiment 5 |
??1.5 |
??12 |
??13 |
Impact 10 times indeformable, crack-free |
No aliquation, breakoff phenomenon such as peel off |
The no globule, nothing are got damp |
|
Apparent density, g/cm
3 |
Water-intake rate, % |
Bending strength, Mpa |
Anti-soft impulse |
Frost resistance |
Surface halide accumulation resistance |
Embodiment 6 |
??1.6 |
??14 |
??12 |
Impact 10 times indeformable, crack-free |
No aliquation, breakoff phenomenon such as peel off |
The no globule, nothing are got damp |