Static breaking agent and preparation method thereof

A technology of static breaking agent and reinforcing agent, which is applied in the field of static breaking agent and its preparation, which can solve the problems of personal safety and injury, and achieve the effects of reducing hydration speed, low cost and strong expansion force

Inactive Publication Date: 2018-01-12
吴义峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a static breaking agent an

Method used

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  • Static breaking agent and preparation method thereof

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Effect test

example 1

[0026] Take 900g of industrial heavy calcium powder and 50g of iron oxide, mix them evenly, add 30g of deionized water, mix them evenly, mold them into shape, put them in a drying oven, dry them at 105°C to constant weight, and then transfer them to a muffle furnace , at a heating rate of 20°C / min to 1400°C, heat-preserved and calcined for 1 hour, cooled to room temperature, put it into a pulverizer and pulverized it, passed through a 40-mesh sieve to obtain burnt lime clinker, took 60g burnt lime clinker, and 8g condensed Hardener, 10g coagulation enhancer, 2g booster, put into a ball mill and ball mill until the specific surface area is 180m 2 / kg, then add 3g retarder, 1g water reducer, 1g heat conduction agent, continue ball milling for 30min, pass through 60 mesh sieve, and package static breaker.

example 2

[0028] Take 920g of industrial heavy calcium powder and 80g of iron oxide, mix them evenly, add 40g of deionized water, mix them evenly, mold them into shape, put them in a drying oven, dry them at 108°C to constant weight, and then transfer them to a muffle furnace , at a heating rate of 30°C / min to 1420°C, heat-preserved and calcined for 1 hour, cooled to room temperature, put into a pulverizer and pulverized, passed through a 40-mesh sieve to obtain burnt lime clinker, take 70g burnt lime clinker, 10g condensed Hardener, 12g coagulation enhancer, 3g booster, put into the ball mill and ball mill until the specific surface area is 210m 2 / kg, then add 4g retarder, 1g water reducer, 1g heat conduction agent, continue ball milling for 35min, pass through 60 mesh sieve, and package static breaker.

example 3

[0030] Take 950g of industrial heavy calcium powder, 100g of iron oxide, mix them evenly, add 50g of deionized water, mix them evenly, mold them into shape, put them in a drying oven, dry them at 110°C to constant weight, and then transfer them to a muffle furnace , at a heating rate of 50°C / min to 1450°C, heat-preserved and calcined for 2 hours, cooled to room temperature, put into a pulverizer and pulverized, passed through a 40-mesh sieve to obtain burnt lime clinker, take 80g burnt lime clinker, 12g condensed Hardener, 15g coagulation enhancer, 4g booster, put into the ball mill and ball mill until the specific surface area is 240m 2 / kg, then add 5g retarder, 2g water reducer, 2g heat conduction agent, continue ball milling for 40min, pass through 60 mesh sieve, and package static breaker.

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Abstract

The invention relates to a static breaking agent and a preparation method thereof and belongs to the technical field of construction. According to the invention, the crystal size of over-sintered limeis regulated through high-temperature sintering; ferric oxide is doped into the over-sintered lime in the sintering process; the ferric oxide and the calcium oxide form gel and generat C2F under hightemperature condition; C2F is an ore with lower hydration reactivity and is capable of slowly reacting with water; the formed calcium oxide crystal is wrapped by a liquid phase formed under high temperature, so that the hydration speed of the breaking agent is reduced, the setting time is prolonged and the swelling pressure is increased and becomes slow; a heat conducting agent is added for releasing a large amount of heat generated by hydration and the high-temperature orifice spraying phenomenon is improved. According to the invention, the degree of bonding with over-sintered lime is enhanced by a coagulation hardening agent and a coagulation enhancing agent, the consistence of the hardening speed and swelling pressurizing speed is guaranteed and the static breaking agent is high in swelling power, safe, adaptive to various climatic conditions, capable of properly regulating the cracking time of the broken matter and low in cost.

Description

technical field [0001] The invention relates to a static breaking agent and a preparation method thereof, belonging to the technical field of building construction. Background technique [0002] Static breaker, also known as expansion cracker, expansion breaker, silent breaker, etc., is a new type of powder material developed for breaking rock, concrete and other media. The composition of the static breaker is mainly calcium oxide (CaO), and contains a small amount of inorganic salt compounds and organic composite additives. Inorganic salt compounds and organic composite additives exist in the form of retarder, water reducing agent and hydraulic substances in the whole static breaker. [0003] Static breaking agent is a chemical preparation with calcium oxide as the main component. It is a non-explosive breaking material with high expansion performance and belongs to non-combustible, non-explosive and non-toxic items. After the static breaker is mixed with water, the volum...

Claims

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Application Information

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IPC IPC(8): C04B28/10C04B2/10
Inventor 吴义峰王之霖陈倩
Owner 吴义峰
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