Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dry plastered wallboard and production method thereof
The invention provides a dry plastered wallboard. The dry plastered wallboard is prepared from the following materials in percentage by weight: 25-40% of gypsum powder; 55 to 70% of stone powder; 2.4%of sodium carbonate; 2.4% of aluminum silicate; and a micro amount of adelayed coagulant. The preparation method is characterized by preparing a mortar core material from the materials, mixing, stirring, hardening and cutting to obtain the dry plastered wallboard. By doping sodium carbonate and aluminum silicate into the raw material formula, the dry plastered wallboard is a process of convertingtrihydrate gypsum in gypsum powder into hemihydrate gypsum during mixing and stirring, and the sodium carbonate and the aluminum silicate are used for improving the crystal form of the hemihydrate gypsum in the process of converting the trihydrate gypsum into the hemihydrate gypsum, so that the quality of the dry plastered wallboard is improved, and therefore, the product has higher freezing resistance and fracture resistance when absorbing water and hardening. In the process, a retarder and anti-cracking fibers are doped, so that the bending resistance of the wallboard can be further improved.
本发明提供了一种干抹灰墙板，选用重量百分比如下的材料：石膏粉：25至40％；石粉：55至70％；碳酸钠：2.4％；硅酸铝：2.4％；以及微量的抗裂纤维和缓凝剂，根据上述材料制得砂浆芯材，经过混合搅拌、硬化以及切割过后，制得干抹灰墙板。通过在原料配方中掺入碳酸钠和硅酸铝，该干抹灰墙板在进行混合搅拌时，是石膏粉中的三水石膏转变为半水石膏的过程，碳酸钠与硅酸铝的作用是在三水石膏转变为半水石膏的过程中改善半水石膏的晶形，使之再吸水硬化时会有较高的抗冻性与抗折性。在此过程中，再掺入缓凝剂与抗裂纤维可以进一步改善该墙板的抗折性能。
Dry plastered wallboard and production method thereof
The invention provides a dry plastered wallboard. The dry plastered wallboard is prepared from the following materials in percentage by weight: 25-40% of gypsum powder; 55 to 70% of stone powder; 2.4%of sodium carbonate; 2.4% of aluminum silicate; and a micro amount of adelayed coagulant. The preparation method is characterized by preparing a mortar core material from the materials, mixing, stirring, hardening and cutting to obtain the dry plastered wallboard. By doping sodium carbonate and aluminum silicate into the raw material formula, the dry plastered wallboard is a process of convertingtrihydrate gypsum in gypsum powder into hemihydrate gypsum during mixing and stirring, and the sodium carbonate and the aluminum silicate are used for improving the crystal form of the hemihydrate gypsum in the process of converting the trihydrate gypsum into the hemihydrate gypsum, so that the quality of the dry plastered wallboard is improved, and therefore, the product has higher freezing resistance and fracture resistance when absorbing water and hardening. In the process, a retarder and anti-cracking fibers are doped, so that the bending resistance of the wallboard can be further improved.
本发明提供了一种干抹灰墙板，选用重量百分比如下的材料：石膏粉：25至40％；石粉：55至70％；碳酸钠：2.4％；硅酸铝：2.4％；以及微量的抗裂纤维和缓凝剂，根据上述材料制得砂浆芯材，经过混合搅拌、硬化以及切割过后，制得干抹灰墙板。通过在原料配方中掺入碳酸钠和硅酸铝，该干抹灰墙板在进行混合搅拌时，是石膏粉中的三水石膏转变为半水石膏的过程，碳酸钠与硅酸铝的作用是在三水石膏转变为半水石膏的过程中改善半水石膏的晶形，使之再吸水硬化时会有较高的抗冻性与抗折性。在此过程中，再掺入缓凝剂与抗裂纤维可以进一步改善该墙板的抗折性能。
Dry plastered wallboard and production method thereof
一种干抹灰墙板及其生产方法
MAO CHANGFU (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
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