concrete breaker

1. Product introduction

Chemical explosives, silent safe blasting agents, are gray powdery chemical reagents, very safe rock The mining and processing of marble and other stones, the crushing of concrete, the demolition of old buildings, etc., using explosives for blasting is very unsafe and poses a greater risk to workers, especially the demolition of old buildings, which will not only affect the safety of personnel, but also It can also easily damage surrounding buildings. Nowadays, static blasting is generally used, which is safe and will not endanger other buildings. In the chemical silent blasting method, when the concrete breaker reacts with water, the volume will expand rapidly and can generate a pressure of up to 150 MPa, which is enough to statically break cement components, rocks, etc.

2. Scope of application

This product is suitable for the demolition of concrete or reinforced concrete structures. The mining and cutting of rocks, such as marble, granite, and jade, can increase the yield rate by 2 to 3 times. Can be combined with controlled explosion or hydraulic cannon to demolish concrete buildings or break rocks. It is especially suitable for crushing or demolition operations in situations where explosive blasting is not suitable.

3. Product features:

(1) It is a static blasting, relatively safe, it will not Endangering the safety of people and surrounding buildings, no noise will be produced.

(2) Less debris is produced, which can increase the integrity rate of products (such as mining of rocks and mineral deposits).

(3) Low price. Used for rock and mineral mining, concrete crushing, demolition of old buildings, etc.

4. Usage methods and precautions

(1) Preparation: First, according to the size of the object to be broken The hole diameter, hole spacing, hole depth, etc. are designed based on factors such as material, structure, shape, and crushing requirements. The following are general crushing design parameters.

Note: H- The breaking height of the object.

Broken object	Drilling parameters			Concrete crushing agent usage (kg/m3 )
	Aperture (mm)	Hole spacing (cm)	Hole depth
Light rock crushing	30 ~ 50	30 ~ 50	H	8 ~ 10
Medium hard rock crushing	30 ~ 50	30 ~ 50	105%H	10 ~ 15
Rock cutting	30 ~ 40	20 ~ 50	90%H	One ​​side cutting 5～8 Two sides cutting 15～16
Unreinforced concrete broken	30 ~ 50	30 ~ 50	80%H	3 ~ 10
Reinforced concrete broken		15 ~ 30	H	15 ~ 25

(2) The appropriate concrete crusher model must be selected according to the construction environment temperature, and they must not be used interchangeably. When used to crush reinforced concrete, some peripheral steel bars should be cut off first.

(3) Mixing: Pour water into the container with a weight ratio of 25 to 30% of concrete breaker, then add concrete breaker, use mechanical or rubber Stir with gloved hands into a fluid, homogeneous slurry. For construction below 5℃, water around 30℃ can be used for mixing.

(4) Filling: Before filling the hole, the hole must be clean and free of water and debris. The filling operation can be done by direct pouring or by pressing mortar into the hole. The irrigation holes must be dense and do not block the openings. If it is horizontal or inclined, use dry and thick cement-like concrete breaker to roll into strips, stuff them into the holes and tamp them down. The mixed concrete breaker slurry must be filled in the holes within 10 minutes, otherwise, the fluidity and crushing effect will be reduced.

(5) During grouting and before cracks occur, construction workers must wear protective glasses and are not allowed to look directly into the hole to prevent eye damage from shotcrete and collision. If it comes into contact with skin or eyes, rinse with water immediately, go to the hospital for medical treatment, and inform them of contact with strongly alkaline substances, PH=14.

(6) Maintenance: No maintenance is required in spring, summer and autumn. In winter, cover with straw mats and other materials to keep warm.

5. Packaging and storage

Net weight of each bag is 25kg/bag. It should be stored in a dry place and protected from moisture. The shelf life is three months.

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80%H

3 ~ 10

Reinforced concrete broken

15 ~ 30

H

15 ~ 25

(2) The appropriate one must be selected according to the construction environment temperature Concrete breaking agent models must not be used interchangeably. When used to crush reinforced concrete, some peripheral steel bars should be cut off first.

(3) Mixing: Pour water into the container with a weight ratio of 25 to 30% of concrete breaker, then add concrete breaker, use mechanical or rubber Stir with gloved hands into a fluid, homogeneous slurry. For construction below 5℃, water around 30℃ can be used for mixing.

(4) Filling: Before filling the hole, the hole must be clean and free of water and debris. The filling operation can be done by direct pouring or by pressing mortar into the hole. The irrigation holes must be dense and do not block the openings. If it is horizontal or inclined, use dry and thick cement-like concrete breaker to roll into strips, stuff them into the holes and tamp them down. The mixed concrete breaker slurry must be filled in the holes within 10 minutes, otherwise, the fluidity and crushing effect will be reduced.

(5) During grouting and before cracks occur, construction workers must wear protective glasses and are not allowed to look directly into the hole to prevent eye damage from shotcrete and collision. If it comes into contact with skin or eyes, rinse with water immediately, go to the hospital for medical treatment, and inform them of contact with strongly alkaline substances, PH=14.

(6) Maintenance: No maintenance is required in spring, summer and autumn. In winter, cover with straw mats and other materials to keep warm.

5. Packaging and storage

Net weight of each bag is 25kg/bag. It should be stored in a dry place and protected from moisture. The shelf life is three months.

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