Concrete weight coating for offshore pipelines | …
CWC pipeline coating with MagnaDense. Our customers, the offshore pipeline companies, mix MagnaDense into a high density concrete, which they apply to the pipelines and which provide a heavyweight coating. Alternative subsea pipeline protection is concrete mattresses for which dense concrete is also used.
Wasco Orders Iron Ore for Nord Stream 2 Pipe …
03-05-2017 · The iron ore will be used for the concrete coating of the steel pipes needed to build the planned Nord Stream 2 pipeline. A heavy high-density concrete coating will be applied to each of the approximately 200,000 pipes to add weight, so that they remain in place on the seabed.
US9322491B2 - Economical heavy concrete weight …
Economical heavy concrete weight coating is used as a weight coating for submarine pipes. The developed economical heavy concrete weight includes steel slag and iron ore as aggregate. Steel slag can contain iron and thus have a higher density than some other types of slag. By supplementing the steel slag with iron ore as aggregate, the economical heavy concrete weight coating can have a …
Pipe Coatings - QMAG
By adding weight to the pipe, CWC helps keep movement and vibration down, prevents slipping and damage to the pipe, and protects the pipe from corrosion. With CWC, pipes are coated at the manufacturing facility with a special formula of magnetite-infused concrete. The iron ore not only makes for a heavier, smoother concrete product.
BAUHUIS - Concrete Weight Pipe Coating …
Concrete weight coating (CWC) involves extremely high operational costs for coating materials (iron ore and cement). Therefore a controlled execution of the coating process from the start of production is essential. Bauhuis has in-depth knowledge of the process and brings experiences gathered over 40 years in designing concrete weight pipe ...
Utilization of Um Bogma Ferro Manganese Ore as a Heavy ...
Weight in Concrete Coating for Subsea Petroleum Pipeline Gaber M A W 1* Abstracts: High density aggregates of iron ore are imported by petroleum sector in Egypt, for utilization in manufacturing of
ABRACO
• Raw materials: Cement, Aggregates, Iron Ore, water and steel wire mesh • Features: Compressive strength, density, water absorption, • Standards: ISO 21809-5 • State of the art Concrete Weight Coating. ... the concrete weight coating to corrosion protection coating of the pipe shall be …
New heavy aggregate for offshore petroleum …
01-12-2014 · Therefore local concrete coating mix components must be suitable for application to pipes, which will be immersed or laid on seabed under seawater to protect the pipes and its supplements against mechanical impacts . The mineral potential in Egypt is quite high; one of these industrial minerals is hematite iron ore located at Um Bogma area.
WO2011149758A1 - Economical heavy concrete …
Economical heavy concrete weight coating (102) is used as a weight coating for submarine pipes (104). The economical heavy concrete weight coating (102) includes steel slag and iron ore as aggregate. Steel slag can contain iron and thus have a higher density than some other types of slag. By supplementing the steel slag with iron ore as aggregate, the economical heavy concrete weight coating ...
ECONOMICAL HEAVY CONCRETE WEIGHT …
05-06-2014 · In a preferred embodiment of economical heavy concrete weight coating, both steel slag and iron ore are used as aggregates. Other aggregates may also be used. In some embodiments, the economical heavy concrete weight coating includes 40-45% iron ore, 30-35% steel slag, 16-17% cement, 2-3% sand, and 5-6% water at the time it is mixed.
Concrete weight coating
Concrete is applied by wrapping a uniform layer while simultaneously wrapping reinforcing wire within the concrete coating for stability. The concrete is prepared in an automated batching plant using aggregates (e.g., sand, iron ore), cement and water.
(PDF) Utilization of Um Bogma Ferro Manganese …
In this study the evaluation of Um Bogma manganese-Iron ore to be used in subsea pipeline concrete weight coating, meantime the ore by product is available by huge quantities in Sinai Manganese ...
Biodeterioration of Pipeline Concrete Coating Material by ...
Concrete coating materials The pipeline coating material used in this study is the concrete made of 60% iron ore, 20% cement, 14% sand and water. Components of the concrete coating material were mixed in correct proportion and poured in a constructed mould to form 2 cm x 1 cm x 1 cm coupons of the concrete material.
DNV, others researching concrete-coating …
Varying the amount of iron ore in the coating changes its density, while compressive strength changes with a coatings cement-water content ratio. Coating cannot maintain required cohesiveness ...
ASSESSMENT OF BAHARIYA HEMATITE - BARITE ORE AS A HEAVY ...
ASSESSMENT OF BAHARIYA HEMATITE - BARITE ORE AS A HEAVY WEIGHT CONCRETE MIX FOR SUBSEA PIPELINE CLADDING Gaber, M. A.Wahab Egyptian Petroleum Research Institute, Exploration Department, Nasr City, Cairo, Egypt¹ ABSTRACT: Heavy aggregates of iron ore were imported by petroleum companies in
CONCRETE WEIGHT COATING - CWC - Bayou …
The concrete weight coating system is typically used in conjunction with other coating systems such as FBE and 3LPP/E. Bayou uses various methods to avoid slippage between the concrete layer and anti-corrosion coating. These include adding a rough-coat layer or applying a 2-component epoxy adhesive to bond the concrete to the coated surface.
"Concrete Coated Pipe" - Images - Nord Stream AG
The concrete mixture is made up of iron ore, aggregate, cement and water and is applied to the pipe with a speed of approx. 190km/h. The concrete coating doubles the weight of the pipe to about 24 tonnes for added stability on the seabed and to provide mechanical protection during handling, transportation and laying operations. Approximately 200 pipes are coated per day (in 2 shifts).
Concrete Weight Coating | Shawcor
The concrete is prepared in an automated batching plant using aggregates (e.g., sand, iron ore), cement and water. The mix is applied on the pipe by impingement or compression while one or more reinforcing wire meshes are incorporated, depending on the required coating thickness. Pipeline Protection, Available Worldwide
Pipe Coating
To allow for higher than normal concrete densities, the concrete mix often contains Iron Ore as a constituent part of the concrete mix. Concrete coating is usually applied to pipes that have already received an anti corrosion coating, typically coatings are, Asphalt Enamel, Three layer Polyethylene or Polypropylene and to a lesser extent Fusion Bonded Epoxies.
DESIGN MIX OPTIMIZATION OF HEAVY WEIGHT CONCRETE …
and applicator of anticorrosion coating, insulation, and heavy weight concrete (HWC) coating products. HWC is a specific design concrete with a minimum density of 1900 kg/m3 (DNV, 2007). Normally it consist of a mixture 4 components of coarse and fine aggregates (iron ore), portland cement and water in a certain proportions.