Concrete solutions for tunneling and mining

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Shotcrete for mining or tunneling projects

Most commonly known challenges when mixing concrete (shotcrete) for spraying with mining or tunnel projects are the frequently changing, often quite poor concrete quality, fibre clumps, too low early strength and very high cement content in concrete mixes, which sometimes exceeds 600 kg/m³. With Tecwill shotcrete plant solutions all these problems can be solved.

Furthermore, Tecwill shotcrete solutions create significant savings.

Our technology allows to reduce the cement content in a mix design by 5–20%, which leads to huge savings not only in production costs but also in matters of CO2 emissions and the carbon footprint.

 

Backfill production for mining projects

Tecwill provides improved backfill dosing and mixing technology for mining projects. Continuous backfill mixing with a fully automatic and self-learning process control means stabile and cost effective production.

Our systems provide sustainable, environmentally friendly solutions for the production of backfill material.

Arcamix concrete plant

ARCAMIX

The modular construction of ARCAMIX concrete mixing plants is based on sea container dimensions. Pre-assembled and factory tested modular guarantee fast installation and start-up. At the installation site the modules just are connected to each other. Electrical and automation cables only need be plugged in. ARCAMIX has a stationary and completely mobile solution with steel foundation and filling ramp elements.

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Cobra

COBRA

The patented COBRA concept represents the newest development in the field of concrete mixing plants: completely factory pre-assembled plants, which can easily be installed, quickly be commissioned, economically be operated and, although functioning as proper stationary plants, effortless be moved to a new site, when the actual project has been accomplished or the market situation changed.

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See the video how fibers are dosed in Tecwill shotcrete plants.

Fully automatic fiber dosing in operation.

tecwill_tunneling-and-mining_video2-fibre_dosing

 

Fully automatic fiber dosing system can be connected to any Tecwill plant. It can dose steel, plastic or polypropylene fibers smoothly without fiber clumps.

See the video how fibers are mixed with aggregate in Tecwill shotcrete plants.

Fiber dosing to aggregate flow in operation.

tecwill_tunneling-and-mining_video1

 

Tecwill system is dosing fibers to aggregate flow to avoid fiber clumps and to mix homogeneous shotcrete. 

How to produce good quality fibre concrete, especially shotcrete?

Producing fibre concrete, especially when shotcrete is concerned, might sometimes cause headache for concrete producers. Usually, fibre concrete is required for special projects only and if so, the concrete plant needs to be equipped accordingly and must work reliably. In the following some important points are mentioned, which might help to produce high quality fibre concrete for shotcrete purposes.

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How to produce good quality fibre concrete, especially shotcrete?

Producing fibre concrete, especially when shotcrete is concerned, might sometimes cause headache for concrete producers. Usually, fibre concrete is required for special projects only and if so, the concrete plant needs to be equipped accordingly and must work reliably. In the following some important points are mentioned, which might help to produce high quality fibre concrete for shotcrete purposes.

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Concrete solutions for tunneling and mining

How the aggregate dosing precision effects on concrete and shotcrete production costs?

When discussing this matter with people who are working in this field, people tend to assume that the faster the dosing of the aggregate takes place, the faster the production process runs. Looking at the whole picture however, it only is important to adjust the speed of aggregate dosing according to the speed of the slowest step in the whole process.

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How the aggregate dosing precision effects on concrete and shotcrete production costs?

When discussing this matter with people who are working in this field, people tend to assume that the faster the dosing of the aggregate takes place, the faster the production process runs. Looking at the whole picture however, it only is important to adjust the speed of aggregate dosing according to the speed of the slowest step in the whole process.

Read more
Concrete solutions for tunneling and mining

How to measure aggregate moisture in a concrete mixing plant?

The biggest problem in connection with the concrete production is the variation in aggregate moisture and therefore it is an important task to make sure that measuring of the aggregate moisture is easy and as accurate as possible.

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How to measure aggregate moisture in a concrete mixing plant?

The biggest problem in connection with the concrete production is the variation in aggregate moisture and therefore it is an important task to make sure that measuring of the aggregate moisture is easy and as accurate as possible.

Read more
Concrete solutions for tunneling and mining

REFERENCES

Mobile concrete and shotcrete mixing plant COBRA C40 at a tunnel project in Iceland

Concrete solutions for tunneling and mining

Tecwill’s COBRA C40 is a mobile concrete mixing plant, which is perfectly suitable for duties with challenging conditions. It is a completely winterized plant with aggregate heating system, easy foundation works is a small part of the positive COBRA C40 features only. Read why Metrostav chose Tecwill as their supplier and and how the delivery went.

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Tecwill is a world leading expert company in manufacturing plants for the production of environmentally friendly high quality concrete.

Our unique technologies at the same time offer significant savings in production costs and energy consumption.

Our factory tested concrete plant modules are simple to install, our plants are fast to erect, safe to operate, easy to maintain and, if necessary, can be moved to another location in a very short time.

Watch video of delivering and assembling

Arcamix delivery and assembly-video

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Janne Tuomikko

Export Sales:

Janne Tuomikko

+358 10 830 2911


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