CN104016642A - Preparation method of special-shaped polymer structure reinforcing composite light-weight cement - Google Patents
Preparation method of special-shaped polymer structure reinforcing composite light-weight cement Download PDFInfo
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- CN104016642A CN104016642A CN201410289026.2A CN201410289026A CN104016642A CN 104016642 A CN104016642 A CN 104016642A CN 201410289026 A CN201410289026 A CN 201410289026A CN 104016642 A CN104016642 A CN 104016642A
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Abstract
The invention relates to a preparation method of special-shaped polymer structure reinforcing composite light-weight cement, relating to a preparation method of composite light-weight cement and aiming at obtaining a light-weight high-strength cement building material. The preparation method comprises the following steps of 1, preparing a special-shaped polymer structure; 2, preparing cement slurry; 3, forming a light-weight cement composite material. The preparation method disclosed by the invention improves the reinforcing mechanism of the cement-based composite material from the independent reinforcement of a discontinuous reinforcement phase into the synergetic enhancement of a continuous reinforcement phase by substituting a continuous polymer special-shaped structure network for a discontinuous polymer fiber, thereby effectively enhancing the usage property of the cement-based composite material. The preparation method disclosed by the invention effectively reduces the weight of the material by 40%-50%, does not change the flowing property of the cement slurry, can be used for freely designing the structure of the reinforcement phases and integrally forming the composite material and a prefabricated structure, has the advantages of simple preparation process, low cost, high designability of a technical process, abundance in used raw material and the like and can effectively reduce the weight of the cement building material.
Description
Technical field
The present invention relates to a kind of preparation method of composite light cement.
Background technology
Cement is one of three large basic materials of building industry, have the title of " grain of building industry ", even the today constantly occurring at New Building Materials, cement remains topmost material of construction.Cement is used seldom separately, is to be more combined to form matrix material use as a kind of colloid and other materials, and most popular cement-base composite material is concrete.Due to concrete fracture toughness property, tension, bending strength is Shortcomings all, so there is fibre-reinforced cement-base composite material, this be a kind of by staple fibre (steel fiber, carbon fiber and polymer fiber etc.) as the new matrix material that gathers materials and form with concrete-agitating, combination by staple fibre and cement slurry forms Discontinuous Reinforcement effect, can effectively improve concrete toughness and intensity.In addition, also have a kind of polymer cement based composites to be widely studied, polymkeric substance participates in the solidification process of cement with emulsion form, changes the performance of cement by the impact on hardening of cement process.Polymkeric substance is strongthener, is again colloidal materials, cement is played toughness reinforcing, plasticising, filling perforation and curing effect, can significantly improve the strength property of concrete material.But above-mentioned novel concrete based composites, is still tired limiting at concrete Research Concept, that is to say still the category at traditional cement material.
Summary of the invention
The object of the invention is to provide the preparation method of the composite light cement that a kind of special-shaped polymer architecture strengthens, and object is to obtain lightweight, high-strength cement constructional material.
The preparation method of the composite light cement that abnormity polymer architecture strengthens, realizes according to the following steps:
One, the making of polymkeric substance polymorphic structure: adopt deposition forming method thermoplastic material to be processed into the space structure with high stability; Wherein thermoplastic material is polyethylene, polypropylene, polyvinyl chloride, nylon or urethane;
Two, cement slurry is made: according to volume ratio 1 ﹕, (1～4) ﹕ (1～1.5) stirs ordinary Portland cement, fine aggregate and water;
Three, light cement is composite formed: polymkeric substance polymorphic structure is fixing in mould, polymkeric substance polymorphic structure accounts for 0.1%～30% of mould internal volume, then cement injection slurry under vibration condition, seasoning sizing after perfusion, through die sinking, clear up, complete after repairing type the preparation of the composite light cement that special-shaped polymer architecture strengthens.
The present invention is independent of existing cement-base composite material system, discontinuous wild phase is changed into continuous wild phase, the working strength that effectively improves cement by globality and the good snappiness of polymkeric substance polymorphic structure, realized the integral forming that cement-base composite material and predetermined structure are made, reduce the weight of structural part simultaneously, technique is simple, has good operability.
Advantage of the present invention is: use continuous polymkeric substance polymorphic structure network to replace discontinuous polymer fiber, the mechanism and enhancement mechanism of cement-base composite material is improved as to the collaborative enhancing of continuous wild phase by the independence enhancing of Discontinuous Reinforcement phase, effectively promotes the use properties of cement-base composite material; Remove the coarse aggregate in cement concrete, can effectively reduce the weight of material, loss of weight 40%-50%; Cement-base composite material adopts filling type to be shaped, and does not change the flowing property of cement slurry; The structure of wild phase can freely design, matrix material and precast construction integral forming.To sum up, in contrast to existing fiber reinforced cement-based composite material, there is manufacture craft simple, cost is low, and technological process designability is strong, uses abundant raw material, can effectively reduce the advantages such as weight of cement constructional material, be a kind of lightweight, high-strength novel cement-based structured material, has enriched cement constructional material kind.
Accompanying drawing explanation
Fig. 1 is the structural representation of preparing the composite light cement of gained abnormity polymer architecture enhancing in embodiment.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: the preparation method of the composite light cement that present embodiment abnormity polymer architecture strengthens, realizes according to the following steps:
One, the making of polymkeric substance polymorphic structure: adopt deposition forming method thermoplastic material to be processed into the space structure with high stability; Wherein thermoplastic material is polyethylene, polypropylene, polyvinyl chloride, nylon or urethane;
Two, cement slurry is made: according to volume ratio 1 ﹕, (1～4) ﹕ (1～1.5) stirs ordinary Portland cement, fine aggregate and water;
Three, light cement is composite formed: polymkeric substance polymorphic structure is fixing in mould, polymkeric substance polymorphic structure accounts for 0.1%～30% of mould internal volume, then cement injection slurry under vibration condition, seasoning sizing after perfusion, through die sinking, clear up, complete after repairing type the preparation of the composite light cement that special-shaped polymer architecture strengthens.
In present embodiment step 1, the size of polymkeric substance polymorphic structure can be made according to actual demands of engineering;
Fine aggregate particle size 0～5mm grating in present embodiment step 2.
In present embodiment step 3, under vibration condition, cement injection slurry object is the abundant combination that guarantees cement slurry and polymkeric substance polymorphic structure.
In present embodiment step 3, mold shape is made according to actual demands of engineering, and material is not limit.
Embodiment two: present embodiment is different from embodiment one, the space structure in step 1 with high stability is the hexagon dimensional network structure of diamond dimensional network structure or graphite crystal.Other step and parameter are identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two, stirs silicate cement and fine aggregate according to volume ratio 1 ﹕ 2 ﹕ 1 in step 2.Other step and parameter are identical with embodiment one or two.
Embodiment four: present embodiment is different from embodiment one or two, stirs silicate cement and fine aggregate according to volume ratio 1 ﹕ 3 ﹕ 1.5 in step 2.Other step and parameter are identical with embodiment one or two.
Adopt following examples to verify beneficial effect of the present invention:
Embodiment:
The preparation method of the composite light cement that abnormity polymer architecture strengthens, realizes according to the following steps:
One, the making of polymkeric substance polymorphic structure: adopt deposition forming method thermoplastic material to be processed into the space structure with high stability; Wherein thermoplastic material is polyethylene;
Two, cement slurry is made: according to volume ratio, 1 ﹕ 3 ﹕ 1 stir ordinary Portland cement, fine aggregate and water;
Three, light cement is composite formed: polymkeric substance polymorphic structure is fixing in mould, polymkeric substance polymorphic structure accounts for 10% of mould internal volume, then cement injection slurry under vibration condition, seasoning sizing after perfusion, through die sinking, clear up, complete after repairing type the preparation of the composite light cement that special-shaped polymer architecture strengthens.
In the present embodiment step 1, polymkeric substance polymorphic structure is of a size of 160 * 40 * 40mm;
The hexagon dimensional network structure that the space structure in the present embodiment step 1 with high stability is graphite crystal.
Fine aggregate particle size 0～5mm grating in the present embodiment step 2.
In the present embodiment step 3, under vibration condition, cement injection slurry object is the abundant combination that guarantees cement slurry and polymkeric substance polymorphic structure.
In the present embodiment step 3, mold shape is rectangular parallelepiped, and material is wooden.
The composite light cement that in the present embodiment, gained abnormity polymer architecture strengthens, as shown in Figure 1, visible polymkeric substance polymorphic structure is as continuous wild phase for its structural representation, globality good and with the cement slurry integral forming of having combined closely.
The composite light cement that in the present embodiment, gained abnormity polymer architecture strengthens, after testing, more than its ultimate compression strength can reach 40MPa, far above the 20MPa of sand-cement slurry, has reached the strength criterion of high-strength concrete.
Claims (4)
1. a preparation method for the composite light cement that special-shaped polymer architecture strengthens, is characterized in that it realizes according to the following steps:
One, the making of polymkeric substance polymorphic structure: adopt deposition forming method thermoplastic material to be processed into the space structure with high stability; Wherein thermoplastic material is polyethylene, polypropylene, polyvinyl chloride, nylon or urethane;
Two, cement slurry is made: according to volume ratio 1 ﹕, (1～4) ﹕ (1～1.5) stirs ordinary Portland cement, fine aggregate and water;
Three, light cement is composite formed: polymkeric substance polymorphic structure is fixing in mould, polymkeric substance polymorphic structure accounts for 0.1%～30% of mould internal volume, then cement injection slurry under vibration condition, seasoning sizing after perfusion, through die sinking, clear up, complete after repairing type the preparation of the composite light cement that special-shaped polymer architecture strengthens.
2. the preparation method of the composite light cement that a kind of special-shaped polymer architecture according to claim 1 strengthens, the space structure that it is characterized in that having in step 1 high stability is the hexagon dimensional network structure of diamond dimensional network structure or graphite crystal.
3. the preparation method of the composite light cement that a kind of special-shaped polymer architecture according to claim 1 and 2 strengthens, is characterized in that according to volume ratio 1 ﹕ 2 ﹕ 1, silicate cement and fine aggregate being stirred in step 2.
4. the preparation method of the composite light cement that a kind of special-shaped polymer architecture according to claim 1 and 2 strengthens, is characterized in that according to volume ratio 1 ﹕ 3 ﹕ 1.5, silicate cement and fine aggregate being stirred in step 2.
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| CN201410289026.2A CN104016642B (en) | 2014-06-24 | 2014-06-24 | The preparation method of the composite light cement that a kind of profiled polymer structure strengthens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555874A (en) * | 2017-09-12 | 2018-01-09 | 成都新柯力化工科技有限公司 | A kind of reflective light flexible decorating road curb and preparation method |
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| JPH03257054A (en) * | 1990-03-05 | 1991-11-15 | Shin Etsu Chem Co Ltd | Ceramics-based external wall material composition |
| CN101451386A (en) * | 2007-12-06 | 2009-06-10 | 上海大秦新型建材有限公司 | Three-dimensional net rack light wallboard and preparation method thereof |
| CN102745955A (en) * | 2011-09-21 | 2012-10-24 | 江苏尼高科技有限公司 | Preparation process for three-dimensional mesh cloth foaming cement composite material |
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| CN107555874A (en) * | 2017-09-12 | 2018-01-09 | 成都新柯力化工科技有限公司 | A kind of reflective light flexible decorating road curb and preparation method |
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