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Underwater static crushing agent and preparation method thereof

A technology of static breaking agent and water reducing agent, which is applied in the field of underwater static breaking agent and its preparation, which can solve the problems of concrete engineering that cannot be statically broken directly in water, and achieve the effect of novel material selection, high safety factor, and environmental friendliness

Active Publication Date: 2016-08-10
QINGDAO PACIFIC OCEANEERING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, seek to design and provide an underwater static breaking agent and its preparation method, and solve the technical problem that the current static breaking agent cannot directly statically break concrete projects in water

Method used

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  • Underwater static crushing agent and preparation method thereof

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Effect test

Embodiment 1

[0012] In this embodiment, the process of preparing the underwater static breaking agent according to the weight ratio is: 8.3Kg perburned calcium oxide, 1.25Kg ordinary Portland cement, 0.15Kg calcium chloride, 0.27Kg UWB-II flocculant and 0.03Kg Mix the polycarboxylate superplasticizer, mix and disperse evenly to make an underwater static breaker; weigh 3Kg of water with an open container, pour the above underwater static breaker into the water container, and stir while pouring until it becomes Uniform paste slurry; pour the paste slurry into the injection container, the front end of the injection container is equipped with a 2cm thick plastic tube, the length of the plastic tube is greater than the depth of the blast hole, and then the diver will pour the paste slurry in the injection container underwater Inject into the blast hole, and press the blast hole with bricks after filling; the prepared underwater static breaking agent can statically blast the underwater concrete b...

Embodiment 2

[0014] In the present embodiment, the underwater static breaking agent is prepared according to the following weight percentages:

[0015]

[0016] The preparation process of the underwater static breaking agent is as follows: 14.1Kg static breaking agent, 0.405Kg ordinary Portland cement, 0.075Kg calcium chloride, 0.375Kg UWB-II flocculant and 0.045Kg polycarboxylate superplasticizer Mix, mix and disperse evenly to make an underwater static breaking agent; weigh 4.2Kg of water with an open container, pour the above-mentioned underwater static breaking agent into the water container, and stir while pouring until it becomes a uniform paste slurry; Put the pasty slurry into a straight plastic bag with the same diameter as the blast hole and wrap it with a rope lock to seal it. Then the diver puts the sealed straight plastic bag into the blast hole and compacts the blast hole with bricks.

[0017] In the present embodiment, what the static blasting of the underwater static bre...

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Abstract

The invention specifically relates to an underwater static crushing agent and a preparation method thereof, belonging to the technical field of soundless crushing. The underwater static crushing agent comprises, by weight, 80 to 95% of overburnt calcium oxide, 2.7 to 14.7% of Portland cement, 0.5 to 2% of calcium chloride, 2 to 3% of UWB-II type underwater nondispersible concrete flocculating agent and 0.3% of a polycarboxylate superplasticizer. The preparation method comprises a step of subjecting the above-mentioned components to dry mixing and uniform dispersion with overburnt calcium oxide with a fineness of 35 to 30 [mu]m as a main component, Portland cement as a coagulation and hardening agent, calcium chloride as an early-strength agent, the UWB-II type underwater nondispersible concrete flocculating agent as a flocculating agent and the polycarboxylate superplasticizer as a water reducing agent. An application method for the underwater static crushing agent comprises a first step of filling an injector or a polybag of a straight tube structure with pasty slurry and a second step of bringing the injector or polybag to water by a diver for underwater usage. The crushing agent and preparation method thereof are good in security, short in a construction cycle, low in construction cost and environment friendly.

Description

Technical field: [0001] The invention belongs to the technical field of silent crushing, and in particular relates to an underwater static crushing agent and a preparation method thereof. The static crushing technology is introduced into underwater operations to realize static crushing of underwater projects. Background technique: [0002] Static crushing technology is a new method of crushing rock and concrete developed in recent years. The static crushing agent is mixed with an appropriate amount of water and then injected into the blast hole. The hydration reaction of the crushing agent itself produces volume expansion, thereby Slowly and quietly apply expansion pressure to the hole wall to break the medium; the static breaking agent used is also called silent breaking agent, which is named in the building materials industry standard of the People's Republic of China "Silent Breaking Agent" (standard number JC506-2008) It is defined as "a non-explosive crushing powder mat...

Claims

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Application Information

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IPC IPC(8): C04B28/04F42D3/00
CPCC04B28/04F42D3/00C04B22/124C04B24/24C04B14/30
Inventor 单宇翥陈洋王国鹏陈吉素张勇
Owner QINGDAO PACIFIC OCEANEERING CO LTD
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