New advice on safe use of concrete pumps

The Good Practice Guide for the Safe Use of Concrete Pumps has been written by the British Concrete Pumping Interest Group (BCPIG), part of the Construction Plant-hire Association (CPA), in collaboration with the Health & Safety Executive.
Development in machinery technology has allowed concrete to be pumped under pressure through pipelines across greater distances than before and in significant volumes. However, their increased power has led to a significant number of serious accidents, including some fatalities.
The 47-page document makes clear that the safe operation of concrete pumps depends on correct selection and maintenance of the pump and placing boom, the planning and supervision of their use, and the competence of the operator and other personnel. If any of these are deficient, the risk of an accident increases significantly.
It also makes clear that site managers must ensure that all concrete pumping operations are planned, supervised and carried out safely.
HSE chief inspector of construction Heather Bryant said: “This new guidance has been prepared by a working group representing all parts of the industry, including the Health & Safety Executive, to provide clarity on the safe use of concrete pumps; including planning, role of personnel, training and familiarization of personnel, safe use, maintenance, inspection and thorough examination. The guidance is straightforward, comprehensive and easy to adopt. It represents good practice which may go further than the minimum you need to do in order to comply with the law.”
The Good Practice Guide for the Safe Use of Concrete Pump can be downloaded for free from the CPA website. The guidance supersedes an old code of practice that was first released in 2004.

High Quality Portable Bluetooth Speaker

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LT10001 Ceramic Filter Media-Biological Filter Media

Longtai is a leading manufacturer of biological filter media for aquarium in China with the establishment in 1998.

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What is Ethylone?

The ethyl group is a colorless transparent liquid. A special stimulating odor. With sweet. Extremely volatile. The steam is heavier than air. In the role of the air can be oxidized into peroxides, aldehydes and acetic acid, exposure to light can promote its oxidation. When the ether contains peroxide, the evaporation of residual peroxide after heating to 100 ° C or more can cause a strong explosion; these peroxide can be added 5% aqueous solution of ferrous sulfate shake removed.
Ethylone mainly used as oil, dyes, alkaloids, fat, natural resin, synthetic resin, nitrocellulose, hydrocarbons, linseed oil, petroleum resin, rosin, spices, non-vulcanized rubber and other solvents. The pharmaceutical industry for the production of pharmaceutical extractant and medical anesthetic. Wool, cotton spinning industry as oil cleaners. Gunpowder industry for the manufacture of smokeless powder.

The reinforcement of heavy goods lashing

Binding of major pieces of goods, first of all to correctly select the lashing rigging. Commonly used lashing rope with fiber rope, wire rope and chain, and with the elastic screws, shackles, etc. used together. Lashing of large pieces of goods should use steel wire rope and chain. The use of chain lashing convenient, fast, but not easy to tighten; use of wire rope is easier to tighten the banding, but no chain convenience, each pros and cons, should be selected according to specific circumstances.
Large pieces of goods lashing should also pay attention to the following questions:
1. Lash tightness should be appropriate. Requirements lashing fastening, not to loose, but also to prevent too tight break. But also easy to unlock, so that in case of an accident can be relaxed immediately.
2. Improve the banding effect, saving cable ties. For this purpose, the banding angle should be as small as possible, and should be balanced.
3. To ensure that shipments from injury. In order to avoid the direct contact with the cargo surface, pressure loss or wear goods, should be in the required parts of the banding, if necessary, should be added in the banding site bedding. For the fear of wet goods, in addition to a reasonable choice of goods, the banding should be covered with tarpaulins before, easy to corrosion parts should be coated with protective grease.
4. Lashing process to be correct. Binding should be around, symmetrical. Each rope should be around the first shipment of goods on both sides of a week and then fixed, can not be tied to a multi-channel cable. Each root to make no more than three rope, and the direction can not be the same. For vehicles such as pulleys of goods, generally should first use sleepers bedding, upper rail, between the wheels and rail to use triangular iron fixed, and the triangle should be welded on the rail. Installed in the cabin of the major pieces of goods, in addition to fixed with the cable, the general should also be vertical and horizontal direction with the wooden side to withstand, between the pieces of wood are also pegged to prevent shift on the way.