Returned concrete is a reality and a liability in the readymix concrete industry! It is estimated that the returned concrete from the sites vary from 1 to 3 percent of the volume manufactured at the plant. On the other hand managing the fresh concrete leftovers in the truck mixers and concrete pumps is a daily problem that readymix concrete industries have to cope with.

Beyond the environmental aspect and the obligations arising from legislation, the more important issue is the economy. Typical traditional practices such as disposal of the residual concrete on the ground or in tanks and their management at a later time as dried concrete, among other negatives, are no longer economically unprofitable.

New technologies offer a complete and profitable solutions to this problem and with absolute certainty that the cost of investment will sooner or later be amortized by the benefits of the solution. One of modern solutions for returned concrete is the recycling plant. However, recycling systems are not widespread enough in medium-sized readymix concrete facilities due to the operating cost rather than the investment cost.

The employment of unproductive personnel increases the cost of per m3 of concrete! Who will run the recycling facility and who should be responsible from the system? Should we ask the batchplant operator to do this job? The main question is, whether the success in recycling plants really depends on one responsible person or should we train all mixer drivers returning from the sites or what?

The aim of this eBook is to look at the issue from a different perspective. The study consists of following sections; returned concrete, returned concrete management, rinsing mixer drum, why recycling, mechanical recovery, fresh concrete recycling, filter press, tips for the operators and recycle aggregates in new concrete.

Timuçin Özsöylev

WhatsApp : +90 532-4161387


Resim önizleme

Protect the environment not just to punish but to be sustainable!

Concrete is the world’s most widely used construction material due to its versatility. Every year, more than 10 billion m3 concrete are produced at the batching plants for urban development. Together with projects it is estimated that total 20 billion m3 of concrete are manufactured all over the world.

It’s important that the concrete is made close to where it is used as it generally only lasts ninety minutes before it starts to harden. That’s why there are concrete batch plants in and around the communities. And concrete batch plants play an important role in our daily lives.

The environmental affects of concrete batch plants is very important subject in and outside the plants. These issues can only be managed through a structured environmental management system.

The environmental risks associated with operating concrete batch plant can only be controlled using a risk management approach. The objective of risk management is to enable people to assess all the factors to minimize risk of harm to the environment. This approach will help people make a judgement about the risks and put the appropriate control measures.

This eBook aims to provide basic knowledge to all related responsibles at the concrete batch plants to help them comply with their general environmental duty by outlining; readymix processes, readymix concrete, water management, solid materials, chemical and fuel, spill response for trucks, air quality, noise manage ment, environmental management and employee training.

Each concrete batch plant will be slightly different in design and layout but the common attributes of a plant that demonstrates good environmental performance are more or the less the same.

Timuçin Özsöylev

WhatsApp : +90 532-4161387

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