Concrete Construction Techniques

The video tutorial covers the process of constructing a foundation, starting with setting up posts and marking the foundation corners. It then moves on to removing topsoil and preparing the site with a geo-textile membrane. The foundation layout is marked, and digging begins, followed by placing rebar and setting up shuttering with polystyrene for insulation. Finally, concrete is poured, and the slab is finished, with attention to compaction and insulation.

What is the first step in the construction process described in the video?

• Hammering the posts of wall and foundation axes

• Pouring concrete

• Placing the geo-textile membrane

• Compacting the gravel

What is used to ensure the planks are level?

• A measuring tape

• A level

• A string

• A ruler

What is the purpose of the geo-textile membrane?

• To support the rebar

• To provide insulation

• To mark the foundation corners

• To keep different layers from mixing and increase ground load bearing

How much top soil is removed during the preparation?

• 10-20cm

• 40-50cm

• 20-30cm

• 30-40cm

What is the load capacity of the crane at 10 meters?

• 1.5 tons

• 2 tons

• 1 ton

• 500kg

What is the diameter of the rebar used at the bottom and top of the foundation?

• 10mm

• 12mm

• 14mm

• 16mm

What material is used for shuttering and insulation of the foundations?

• Wood

• Concrete

• Extruded polystyrene

• Metal

What is the grade of the concrete used in the first pour?

• C35/40

• C30/35

• C25/30

• C20/25

What is the thickness of the slab poured in the final step?

• 16 cm

• 14 cm

• 12 cm

• 10 cm

What is used to keep the bottom and top rebar meshes at a distance?

• Wooden stakes

• Concrete blocks

• Metal rods

• Plastic spacers