A kind of plastering and leveling gypsum mortar special for painters and preparation method thereof
A technology for gypsum mortar and painters, which is applied in the field of plastering and leveling gypsum mortar specially used for painters and its preparation field, which can solve the problems of dry sand grading not applicable to paint process mortar ratio and water volume, and achieve a wide range of popularization and application, and improve Work efficiency and the effect of shortening working hours
Inactive Publication Date: 2016-03-09
徐斌
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AI Technical Summary
Problems solved by technology
The main technical problem of the existing gypsum mortar is that the dry sand gradation is not suitable for the paint process and parameters such as mortar ratio and water volume
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present invention is a plastering and leveling gypsum mortar special for painters, which is made of the following raw materials in weight ratio:
[0026] Desulfurization gypsum masterbatch 236
[0027] Cement 10-15
[0028] Retarder 0.7-1.3
[0029] Cellulose ether 0.2-0.4
[0030] Dry sand 700-800
[0031] Its preparation method has the following steps:
[0032] a. Dry the yellow sand raw material with a sand dryer to make dry sand and remove the sand above 2.5mm through the screen;
[0033] b. Use a sieve to sieve the dried dry sand according to four particle size grades below 2.5-2.36mm, 2.36-1.18mm, 1.18-0.6mm, and 0.6-0.3mm, and store them in ton bags or cylinders respectively storage;
[0034] c. Add 3 tons of graded dry sand to the mortar mixer according to the ratio of 3 tons of graded dry sand per ton of desulfurized gypsum masterbatch. The content ratio of the following four particle thickness grades is 30:75:90:555;
[0035] d. Stir with a mortar ...
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Abstract
The invention discloses plastering and leveling gypsum mortar for painters. The mortar is prepared by adopting the following raw materials in parts by weight: 236 parts of desulfurized gypsum master batch, 10-15 parts of cement, 0.7-1.3 parts of a retarder, 0.2-0.4 part of cellulose ether and 700-800 parts of dry sand. A preparation method of the mortar comprises the following steps: a, drying yellow sand to obtain the dry sand, screening and removing sand with the size of more than 2.5mm; b, screening the dry sand by using a screen according to four particle thickness grades; c, proportionally feeding; d, stirring to obtain gypsum mortar; and e, adding water to dilute the gypsum mortar, standing after initial set and leaving the factory after passing inspection. The mortar disclosed by the invention is simple in construction process and free of empty drum or crack after being used and is suitable for the plastering and the leveling of all interior walls.
Description
technical field [0001] The invention relates to a plastering and leveling material for interior walls used in building construction, especially suitable for plastering and leveling gypsum mortar specially used for painters and a preparation method thereof. Background technique [0002] At present, for interior wall plastering and leveling materials in building construction, cement mortar is mainly used, and gypsum mortar is supplemented. Although gypsum mortar has many advantages, its unit price is high, which increases the construction cost, so its popularization and application is relatively slow. In addition, material manufacturers do not understand the on-site practices of various construction personnel, and uniformly use natural graded dry sand with a particle size below 4.0-5.0, resulting in construction personnel not being able to grasp the use characteristics of materials, and work efficiency and quality are greatly affected. The construction is 40 square meters per...
Claims
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IPC IPC(8): C04B28/14C04B24/38C04B14/06
Inventor 徐斌
Owner 徐斌