Blocked concrete delivery pumps - Revision history

Editor at 17:03, 5 May 2021

2021-05-05T17:03:24Z

← Older revision		Revision as of 17:03, 5 May 2021
Line 27:		Line 27:
	* Concrete.		* Concrete.
	* Concrete batching plants.		* Concrete batching plants.
		+	* Concrete boom pumps.
	* Equipment used to construct buildings.		* Equipment used to construct buildings.
	* Mistakes we will admit to.		* Mistakes we will admit to.

Editor at 16:51, 5 May 2021

2021-05-05T16:51:28Z

← Older revision		Revision as of 16:51, 5 May 2021
Line 26:		Line 26:

	* Concrete.		* Concrete.
		+	* Concrete batching plants.
	* Equipment used to construct buildings.		* Equipment used to construct buildings.
	* Mistakes we will admit to.		* Mistakes we will admit to.

Editor at 17:25, 14 April 2021

2021-04-14T17:25:36Z

← Older revision		Revision as of 17:25, 14 April 2021
Line 28:		Line 28:
	* Equipment used to construct buildings.		* Equipment used to construct buildings.
	* Mistakes we will admit to.		* Mistakes we will admit to.
		+	* Stationary pump skills.
	* Testing concrete.		* Testing concrete.
	* The properties of concrete.		* The properties of concrete.

	[[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]		[[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]

Editor at 13:38, 7 April 2021

2021-04-07T13:38:08Z

← Older revision		Revision as of 13:38, 7 April 2021
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	# Strictly control oversight of concrete delivery pump operations.		# Strictly control oversight of concrete delivery pump operations.
	# Carefully manage the distribution of materials once pumping has begun.		# Carefully manage the distribution of materials once pumping has begun.
		+
		+	--[[User:Junhuamachinery\|Junhuamachinery]]

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

Editor at 13:33, 7 April 2021

2021-04-07T13:33:57Z

← Older revision		Revision as of 13:33, 7 April 2021
Line 24:		Line 24:

	* Concrete.		* Concrete.
		+	* Equipment used to construct buildings.
		+	* Mistakes we will admit to.
		+	* Testing concrete.
		+	* The properties of concrete.

	[[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]		[[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]

Editor: moved How to Solve the Problem of the Blocked Concrete Delivery Pump to Blocked concrete delivery pumps

2021-04-07T13:31:08Z

moved How to Solve the Problem of the Blocked Concrete Delivery Pump to Blocked concrete delivery pumps

← Older revision

Revision as of 13:31, 7 April 2021

Editor at 13:30, 7 April 2021

2021-04-07T13:30:36Z

← Older revision		Revision as of 13:30, 7 April 2021
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−	Concrete delivery pump, also called concrete pump trailer, has the advantages of fast construction speed, good construction quality, and convenient construction. In actual use, pipe blocking of concrete delivery pump is a common problem which can affect quality and decrease efficiency. MINLE brand concrete delivery pump system is specially designed and engineered to run smoothly and keep the concrete pipe from blockage.
−
	[[File:Concrete_pump.jpg\|link=File:Concrete_pump.jpg]]		[[File:Concrete_pump.jpg\|link=File:Concrete_pump.jpg]]

−	== ~~Why is there a blockage of Concrete Delivery Pump ? ==~~	+	= Introduction =
−		+
−	1. Something wrong with material. It mainly includes 3 aspects such as the segregation of concrete, the particle size of the aggregate is too large, and the remaining amount is not properly controlled.	+
−		+
−	* In the mixed concrete, the coarse and fine aggregates are not covered with cement slurry, and the cementation effect is insufficient, so the aggregates are more discrete, which may easily cause bleeding. Because no effective lubricating film is formed, the friction between the aggregate and the duct, and the aggregate and the aggregate increases.	+
−	* The coarse aggregate configuration is unreasonable. Among them, the larger the particle size, the worse the overall fluidity of the concrete.	+
−	* Insufficient control of the remaining material is lower than the stirring shaft, which leads to inhaled air and tube blocking.	+
−		+
−	~~2. Something wrong with concrete delivery pump. It mainly includes 2 aspects such as leakage of the delivery pipe and incomplete cleaning of the pipes.~~	+

−	* If the leakage of the pipeline is poor, the leakage of the slurry will cause the poor flowability of the concrete due to the leakage of the cement slurry, and the friction will cause a blockage of the pipe.	+	Concrete delivery pumps frequently experience blocked pipes.This can occur for a number of reasons.
−	* After the previous pumping was completed, the delivery ~~pipe was not cleaned in accordance with regulations, resulting in an unobstructed pipe, which affected pumping~~.	+
−	* Both of ~~these problems are particularly serious at the elbow~~.	+

−	~~3. Management problems of concrete delivery pump. It mainly include 3 aspects such as too fast, too long intermittent time, insufficient consideration of temperature effects.~~	+	= Why blockages happen =

−	* The pump was not properly slowed down during the ~~first pumping, which caused excessive friction inside~~ the ~~catheter and blocked the pipe~~.	+	One of the main causes of a blockage is that there is something wrong with the material. This primarily happens for three reasons related to segregation of concrete, particle size of the aggregate (particularly if it is too large) or lack of controlled delivery of materials.
−	* The intermittent time is too long, which causes the concrete to ~~reach the initial setting state in the duct, which hinders subsequent pumping and leads to blocked pipes~~	+
−	* Insufficient consideration of ~~temperature effects~~, ~~unreasonable protection~~ of the ~~conduit, resulting in excessive evaporation~~ of ~~water or freezing, leading to blockage~~.	+

−	~~== How to prevent blockage of~~ concrete delivery pump~~? ==~~	+	Blockages can also happen if something wrong with the concrete delivery pump. This typically happens for one of two reasons: leakage of the delivery pipe or incomplete cleaning of the pipes.

−	~~1. Carefully selected materials<br />~~	+	Another reason for blockages can be associated with the management of materials through the concrete delivery pump; this can include speed (too fast), scheduling (intermittent delivery is poorly scheduled) or temperature (and its effect on the materials).
−	~~The amount of cement slurry should~~ be ~~sufficient;~~ the ~~particle size of the aggregate should be strictly screened. The maximum particle size of pebble should be less than 1/3 of the diameter~~ of the delivery ~~pipe~~, ~~the maximum particle size of crushed stone should be less than 1/4 of the diameter of the~~ delivery pipe, and the sand content should be greater than 40% The amount should be sufficient and kept above the stirring shaft. Pay attention to check the slump of the concrete. Those who are unqualified must use it after second mixing. Generally, it is ~~8-18cm,~~ and ~~it is generally 15cm when~~ the ~~distance is long and the height is large~~.	+

−	~~2. Strictly controlled of concrete delivery pump~~	+	= Prevent blockages =

−	~~When pumping, set up a special person~~ to inspect the leak tightness of the catheter, and immediately find and repair the leak. When the pumping is finished, you must clean the catheter and set up a special person to inspect and supervise. Before each pumping, check whether the delivery pipe is unobstructed. Try to avoid blockage at the elbow.	+	There are three actions that can be taken to help prevent blockages:

−	3. ~~Strict management~~	+	# Carefully select materials of the suitable size.
		+	# Strictly control oversight of concrete delivery pump operations.
		+	# Carefully manage the distribution of materials once pumping has begun.

−	~~Pump down slowly for the first time, and speed up properly after normal pumping. Generally, the pump is turned~~ on every 5 minutes to prevent pipe blocking during intermittent periods. Concrete that has reached the initial setting state cannot be pumped. Cover the straw bag outside the duct to control the temperature and water in summer Cool down and cover insulation in winter.	+	= Related articles on Designing Buildings Wiki =

−	~~for more information please check [[Www~~.~~junhuamachinery.com\|www.junhuamachinery.com]]~~	+	* Concrete.

−	[[Category:~~Conservation~~]]	+	[[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]

Junhuamachinery at 08:49, 6 April 2021

2021-04-06T08:49:26Z

← Older revision		Revision as of 08:49, 6 April 2021
Line 1:		Line 1:
	Concrete delivery pump, also called concrete pump trailer, has the advantages of fast construction speed, good construction quality, and convenient construction. In actual use, pipe blocking of concrete delivery pump is a common problem which can affect quality and decrease efficiency. MINLE brand concrete delivery pump system is specially designed and engineered to run smoothly and keep the concrete pipe from blockage.		Concrete delivery pump, also called concrete pump trailer, has the advantages of fast construction speed, good construction quality, and convenient construction. In actual use, pipe blocking of concrete delivery pump is a common problem which can affect quality and decrease efficiency. MINLE brand concrete delivery pump system is specially designed and engineered to run smoothly and keep the concrete pipe from blockage.

−	[[File:~~Concrete pump~~.jpg]]	+	[[File:Concrete_pump.jpg\|link=File:Concrete_pump.jpg]]

	== Why is there a blockage of Concrete Delivery Pump ? ==		== Why is there a blockage of Concrete Delivery Pump ? ==
Line 36:		Line 36:
	Pump down slowly for the first time, and speed up properly after normal pumping. Generally, the pump is turned on every 5 minutes to prevent pipe blocking during intermittent periods. Concrete that has reached the initial setting state cannot be pumped. Cover the straw bag outside the duct to control the temperature and water in summer Cool down and cover insulation in winter.		Pump down slowly for the first time, and speed up properly after normal pumping. Generally, the pump is turned on every 5 minutes to prevent pipe blocking during intermittent periods. Concrete that has reached the initial setting state cannot be pumped. Cover the straw bag outside the duct to control the temperature and water in summer Cool down and cover insulation in winter.

−	for more information please check [[~~www~~.junhuamachinery.com\|www.junhuamachinery.com]]	+	for more information please check [[Www.junhuamachinery.com\|www.junhuamachinery.com]]

	[[Category:Conservation]]		[[Category:Conservation]]

Junhuamachinery: Created page with "Concrete delivery pump, also called concrete pump trailer, has the advantages of fast construction speed, good construction quality, and convenient construction. In actual use, p..."

2021-04-06T08:46:57Z

Created page with "Concrete delivery pump, also called concrete pump trailer, has the advantages of fast construction speed, good construction quality, and convenient construction. In actual use, p..."

New page

Concrete delivery pump, also called concrete pump trailer, has the advantages of fast construction speed, good construction quality, and convenient construction. In actual use, pipe blocking of concrete delivery pump is a common problem which can affect quality and decrease efficiency. MINLE brand concrete delivery pump system is specially designed and engineered to run smoothly and keep the concrete pipe from blockage.

[[File:Concrete pump.jpg]]

== Why is there a blockage of Concrete Delivery Pump ? ==

1. Something wrong with material. It mainly includes 3 aspects such as the segregation of concrete, the particle size of the aggregate is too large, and the remaining amount is not properly controlled.

* In the mixed concrete, the coarse and fine aggregates are not covered with cement slurry, and the cementation effect is insufficient, so the aggregates are more discrete, which may easily cause bleeding. Because no effective lubricating film is formed, the friction between the aggregate and the duct, and the aggregate and the aggregate increases.
* The coarse aggregate configuration is unreasonable. Among them, the larger the particle size, the worse the overall fluidity of the concrete.
* Insufficient control of the remaining material is lower than the stirring shaft, which leads to inhaled air and tube blocking.

2. Something wrong with concrete delivery pump. It mainly includes 2 aspects such as leakage of the delivery pipe and incomplete cleaning of the pipes.

* If the leakage of the pipeline is poor, the leakage of the slurry will cause the poor flowability of the concrete due to the leakage of the cement slurry, and the friction will cause a blockage of the pipe.
* After the previous pumping was completed, the delivery pipe was not cleaned in accordance with regulations, resulting in an unobstructed pipe, which affected pumping.
* Both of these problems are particularly serious at the elbow.

3. Management problems of concrete delivery pump. It mainly include 3 aspects such as too fast, too long intermittent time, insufficient consideration of temperature effects.

* The pump was not properly slowed down during the first pumping, which caused excessive friction inside the catheter and blocked the pipe.
* The intermittent time is too long, which causes the concrete to reach the initial setting state in the duct, which hinders subsequent pumping and leads to blocked pipes
* Insufficient consideration of temperature effects, unreasonable protection of the conduit, resulting in excessive evaporation of water or freezing, leading to blockage.

== How to prevent blockage of concrete delivery pump? ==

1. Carefully selected materials<br />
The amount of cement slurry should be sufficient; the particle size of the aggregate should be strictly screened. The maximum particle size of pebble should be less than 1/3 of the diameter of the delivery pipe, the maximum particle size of crushed stone should be less than 1/4 of the diameter of the delivery pipe, and the sand content should be greater than 40% The amount should be sufficient and kept above the stirring shaft. Pay attention to check the slump of the concrete. Those who are unqualified must use it after second mixing. Generally, it is 8-18cm, and it is generally 15cm when the distance is long and the height is large.

2. Strictly controlled of concrete delivery pump

When pumping, set up a special person to inspect the leak tightness of the catheter, and immediately find and repair the leak. When the pumping is finished, you must clean the catheter and set up a special person to inspect and supervise. Before each pumping, check whether the delivery pipe is unobstructed. Try to avoid blockage at the elbow.

3. Strict management

Pump down slowly for the first time, and speed up properly after normal pumping. Generally, the pump is turned on every 5 minutes to prevent pipe blocking during intermittent periods. Concrete that has reached the initial setting state cannot be pumped. Cover the straw bag outside the duct to control the temperature and water in summer Cool down and cover insulation in winter.

for more information please check [[www.junhuamachinery.com|www.junhuamachinery.com]]

[[Category:Conservation]]