Make high strength concrete (high-performance concrete) easily and cheaply yourself [DIY / recipe] 

at 1:23 it hast to be called cement instead of sand.
📚Description📚
With high-strength concrete (high-performance concrete), high strength and filigree projects made of concrete are no problem. Durability, deformation properties and much more are significantly improved with these mixtures. In the recipe, high-strength concrete differs from normal concrete mainly in the low water-cement (W / C) value. The water content for complete hydration of the cement is 0.4. With high-performance concrete, we have to get by with a W / C of at least 0.35. In order to be able to achieve these values, we need a high-quality superplasticizer. Superplasticizers based on polycarboxylate ethers (PCE) are particularly suitable. In this recipe we have set the W / Z at 0.3. Mixing by hand is very borderline and not recommended with a whisk. The mixing process to the desired consistency also takes longer than with normal concrete. A compulsory mixer should therefore be used for high-strength concrete mixtures. In addition to the low W / C value, the higher concrete strengths are also achieved by adding the finest additives. The silica particles are around 30 to 100 times smaller than the cement grains and consist almost entirely of amorphous silicon dioxide. Due to their shape and size, the silica particles are able to fill part of the pore space between the cement grains. This significantly increases the structural compaction of the cement paste due to the fine aggregates. (Micro filler effect)
📋 List of materials 📋
PCE superplasticizers ►► www.moertelsho...
Microsilica ►► www.moertelsho...
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⚜️ Extras / Credits ⚜️
High-strength concretes have a higher material brittleness (lower ductility) than normal-strength concretes. The addition of polypropylene fibers has a very positive effect as reinforcement and improves the properties. However, the fibers have a negative effect on the flow behavior.
The concrete mix has no certification or approval and is therefore only recommended for use in the hobby area.
Thx to ncs for the music:
Song: Dirty Palm - Oblivion (feat. Micah Martin) [NCS Release]
Music provided by NoCopyrightSounds
Free Download / Stream: ncs.io/Oblivion
Watch: • Dirty Palm - Oblivion ...
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