Raw Material Selection And Mix Design
The same machine produces a good block or a cracked one depending on what goes into the mixer.
Machine specifications are fixed; raw material is not. Aggregate quality, cement content and moisture are what change between one plant and the next, and they are what a free moulding test is for. This solution covers how material is assessed before a machine is chosen.
Raw Material Selection And Mix Design In 6 Steps
Material survey
A machine is bought for the block, then the local aggregate turns out to be unsuitable.
Aggregate, cement, fly ash and slag are reviewed at the enquiry stage alongside the block types and the target capacity.
Sample despatch
Nobody tests the material until production starts.
Clients may send raw aggregate to the Linyi factory for free moulding tests.
Trial moulding
Mix problems are diagnosed by trial and error on the customer's own line.
The factory returns finished block samples, test videos and a production parameter report for the block production line.
Mix adjustment
Strength is chased by simply adding more cement.
Free technical guidance covers formula adjustment of concrete raw materials, output boosting and production line optimisation for the life of the equipment.
Waste stream integration
Fly ash, slag and gangue are treated as a disposal problem rather than a feedstock.
Published material lists for the automatic machines include fly ash, slag, coal gangue and recycled construction waste.
Curing regime
Blocks crack in the stack after they leave the machine.
Finished blocks are cured naturally with regular water spraying, covered and sheltered from rain to prevent surface damage and cracking.
The Models Referenced Above
QT4-15 Automatic Concrete Hollow Block Making Machine
Full hydraulic automatic machine producing 5000 to 7000 standard blocks per 8 hour shift from sand, fly ash, slag, gangue or construction waste.
5000-7000 standard blocks per shift
QT10-15 Full Automatic Concrete Block Production Line
Large production line with Siemens, Omron and Yuken components, 90 kN vibration and a published output table across seven block types.
3600-4800 pcs/hour at 400 x 100 x 200 hollow block
QT5-15 Automatic Paver And Block Making Machine
Medium scale automatic plant at 1200 blocks per hour, with a colour machine option for two-layer paving blocks.
1200 pcs/hour at 400 x 200 x 200
QT4-25 Automatic Electrical Vibration Block Machine
PLC controlled press combining flat, mould and compression vibration for even density, with automatic plate supply and brick discharge.
576 pcs/hour at 400 x 200 x 200Raw Material Selection And Mix Design Questions
What does the free moulding test cost?
What comes back from the test?
Can you help with the mix after the machine is installed?
Start On Raw Material Selection And Mix Design
Send the details of your project and the constraint you are working against. A recommended starting point with drawings and a configuration list comes back.