Premixing mortar with high moisture retention and production method thereof

Abstract

The invention discloses pre-stirring mortar with high moisture retention and a production method thereof. The premixing mortar comprises the following components by weight ratio: 100 parts of cement with the high moisture retention, 1 to 900 parts of fine aggregate and 30 to 200 parts of water, wherein the cement with the high moisture retention contains a cellulose ether component and has the moisture retention above 90 percent; and the fine aggregate is natural sand or artificial sand obtain through screen sizing or removing harmful components, and has the maximum grain diameter of 1.18 mm to 2.36 mm. The production method comprises the following steps: arranging a mortar stirring machine on a construction site or nearby; adopting the cement with the high moisture retention and the fine aggregate to automatically meter and stir, enable mortar to be usable while stirring, and the like to ensure the mortar quality; and adopting a closed stirring mode, a dust-collecting mode and the like to reduce dust raise. The pre-stirring mortar can effectively improve and ensure the qualities of the mortar buildings, obviously improves the construction environment, greatly decreases the production cost of the pre-stirring mortar and solves the difficult problems that the prior pre-stirring mortar has over-high cost and are difficult to popularize and apply.

Description

technical field [0001] The invention relates to the field of mortar, in particular to a novel ready-mixed mortar with high water retention and a production method thereof. Background technique [0002] Traditionally in China, sintered bricks (red bricks, etc.) are used as wall materials, and on-site mixing mortar (mainly cement mortar or cement-lime mixed mortar) is used for masonry building and plastering. In order to save cultivated land, promote the application of solid waste, and reduce building energy consumption, my country carried out wall material reform and building energy-saving work in the 1990s, and vigorously developed new wall materials. Enough attention, this also raises a series of questions. [0003] Traditional on-site mixing mortar is mainly used with sintered bricks. Since the water retention rate of mortar is not high, sintered ordinary bricks need to be watered before use (also known as wet construction) in order to increase the cohesion between mortar ...

AI Technical Summary

Problems solved by technology

Since the fine aggregate does not need to be dried, the fine aggregate is often not treated in actual use, which makes the gradation of the fine aggregate unstable, and the content of harmful substances (such as chloride ions, mud content, etc.) may exceed the standard. And this will also lead to unstable performance of the mortar, or even fail to meet the performance requirements, resulting in quality accidents