Desert sand compound type building dry-mixed mortar and manufacturing method thereof

Abstract

The invention relates to a desert sand compound type building dry-mixed mortar and a manufacturing method thereof. The dry-mixed mortar comprises the following raw materials by weight percent: 30%-60% of desert sand, 0.1%-2% of intensifier, 0.01%-2% of water-retaining agent, 0.1%-5% of plasticizer, 0.01%-2% of anti-cracking agent, 0.001%-2% of permeability admixture, 30%-60% of curing agent, 0%-10% of mineralizing agent and 0%-10% of flatting agent. The manufacturing method comprises the following steps: screening the desert sand; crushing, drying and screening the mineralizing agent; and dosing, mixing and stirring the raw materials, thereby obtaining the dry-mixed mortar. A long-term existing problem that the desert sand cannot be used as the sand for building because the desert sand contains superfine grains and is high in silt content is solved. The present problem of utilizing the large amount of desert sand is also solved. A novel method for manufacturing the dry-mixed mortar isprovided. The current situation that the resource of the sand for building is in insufficient is changed. Meanwhile, the production process is simple and the operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a desert sand composite dry-mixed mortar for construction and a manufacturing method thereof. Background technique [0002] With the development of the construction industry, the amount of mortar used in construction has increased dramatically. The manufacture of mortar is usually made of river sand, lake sand, sea sand or ore rocks combined with other components, but the country has restricted the excessive mining of river sand, lake sand and sea sand, and the use of crushed ore rocks to make sand not only consumes The energy is high, and it will cause pollution to the mine environment. At the same time, only limited river sand or rock-breaking machine-made sand can no longer meet the needs of the huge construction market, thus forming a shortage of construction sand resources. [0003] On June 17, 2006, the State Forestry Administration announced that th...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a desert sand composite dry-mixed mortar for construction and its manufacturing method, which effectively solves the long-standing problem that the desert sand cannot meet the requirements of construction sand due to its fine particles and high mud content. The difficulties and the utilization of a large number of desert sands that exist today have opened up a new way for the manufacture of dry-mixed mortar, which has changed the current situation of lack of sand resources for construction. At the same time, its production process is simple, easy to operate and has practical value. High, the particle size range, moisture content and impermeability pressure of the dry-mixed mortar produced meet the requirements of the construction dry-mixed mortar specification, with high bonding strength and high quality

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