Build Concrete Furniture Yourself | Which Type of Concrete Should I Choose?

Build Concrete Furniture Yourself | Which Type of Concrete Should I Choose?

Somewhat skilled hobby craftsmen can also build concrete furniture themselves. There are different types of concrete to choose from, which are either better suited for indoor or outdoor use.

composition

Concrete is a modern building material that can be used for many purposes. It is mainly used in house and road construction but is now also becoming more and more popular in the construction of furniture. At first glance, the production of the building material appears to be quite simple. However, correctly mixing and combining the various types of concrete requires a high level of specialist knowledge and craftsmanship in order to obtain a high-quality product. Basically, the ingredients for a usable concrete mix come from nature. In this context, the aggregates determine whether the concrete for the furniture has a rather fine or somewhat coarser surface. This aspect is then expressed in the size of the pores, and the structure can also be determined with the formwork.

  • The basis is cement, which consists of limestone and clay
  • Can be mixed with gravel, chippings, crushed or quartz sand
  • In the end, there is a lot of water
  • Mix the individual ingredients into a smooth mass
  • Composition determines the characteristics of the concrete
  • These include weight, insulation properties and strength
  • An important aspect is protection against moisture, fire and sound
  • Specialist dealers have finished furniture concrete on offer

Tip: You can add fabric to your DIY concrete mix

Add bamboo or fiberglass. In this way, the stability of the pieces of furniture can be increased significantly without them becoming extremely heavy.

Types of concrete

For simple furniture, the prefabricated concrete mixes that are available in hardware stores are basically sufficient. In this way, users know exactly how heavy the concrete furniture will be and how long it will have to dry. Anyone who has a little manual dexterity and previous knowledge of this can also mix concrete mixes themselves. In addition to the required amount, the resulting weight must always be considered. For large-format DIY projects indoors, only types of concrete with a low dead weight should be used. Such mixtures are mixed with pumice stone or expanded clay, these materials promote the air inclusions and thus lower the average density. Otherwise, problems with the statics can arise, especially in older buildings.

  • Only use aerated concrete for indoor areas
  • Has a density of around 200 to 800 kg per cubic meter
  • Lightweight concrete has a density of up to 2000 kg per cubic meter
  • Use resistant gravel concrete in outdoor areas
  • Has a density of more than 2300 kg per cubic meter
  • However, large and thin panels can break quickly
  • Work in metal mesh for more stability
  • In general, concrete is a building material in one

plain gray

  • Color pigments can also be stirred in for concrete furniture
  • There are many different colors to choose from
  • Anthracite, blue, yellow, green, red or black are possible

Note: with regard to pieces of concrete furniture, it can be said that the finer the concrete mixture is mixed, the better and more appealing the result.

You can check more content in our category ” indoor “

Areas of application

In the house as well as in the garden and on the terrace, there are extremely many areas of application for furniture made of concrete. Due to its long durability and robust and weatherproof properties, concrete furniture is particularly popular in horticulture; it can be left outside all year round. In addition, the pieces of concrete furniture can be designed according to your wishes and the corresponding location conditions. Even difficult corners and unusually shaped areas are no problem with this flexible building material. With the right care and repairs in the event of any damage, the attractive appearance of the concrete furniture is permanently retained. The obvious disadvantage of concrete furniture, however, is its heavy weight. A simple bench made from the building material can weigh more than two hundred kilograms.

  • Ideally, set up directly at the installation site
  • If possible, prefer thin constructions
  • Building material looks futuristic, cool, modern and pure
  • Well suited for tables, side tables, cupboards and shelves
  • Can also be used for benches, stools, sofas and chairs
  • Perfect for kitchen countertops and sinks
  • Possible as a replacement for tiles in the bathroom
  • Ideal for garden furniture, planters and table tennis tables
  • Also conceivable as a building material for beds and lamp bases
  • Make sitting and lying areas comfortable with pillows and mattresses
  • Complete furniture with glass, metal or wooden parts

Note: Due to the heavy weight, it is no longer easy to move after building. For this reason, precise planning, including the specific location, is extremely important when manufacturing furniture from concrete.

formwork

Appropriate formwork is required to produce furniture from the functional building material. This is a negative form for the piece of concrete furniture that will be created later. Since the concrete mix is ​​first liquid, it must be poured into the desired shape. There the building material can dry and harden. The formwork should take up as little space as possible in order to keep the final weight small. However, a sufficient volume is required so that the later concrete element does not break under loads.

Since the furniture has to withstand both its own weight and other loads, its load-bearing capacity is a decisive factor for quality. Existing shapes and materials from the workshop can be used for the formwork. In addition, the surfaces of the shells provide the structure of concrete furniture, for example smooth or structured.

  • Formwork must be solid and precisely fitting
  • Vessels should taper downwards
  • This is the only way to easily remove the end product
  • Round buckets and bins are ideal for small tabletops
  • Stable vessels made of wood or plastic are well suited as casting molds
  • This includes boxes and boxes of various sizes
  • Build individual shapes yourself from wooden boards and slats
  • Wooden elements can be screwed tightly
  • They can therefore withstand a high mass of concrete
  • Set corner joints and covings with silicone
  • Process the mold with formwork oil before pouring
  • Leaves no discoloration on the building material

Protection of the surfaces

The surfaces of concrete furniture must also be adequately protected against moisture, discoloration and soiling, especially outdoors. Comprehensive sealing of the concrete is required for this. Only conventional oils and waxes for normal pieces of furniture do not provide sufficient and permanent protection against external influences.

  • Only sealing makes the concrete furniture weatherproof
  • Colorless products from specialist retailers are ideal
  • A clear coat of paint enhances the color scheme and improves aesthetics
  • Finally, polish and sand with lambswool
  • Surfaces become smooth and supple, similar to soapstone
  • Renew the impregnation at regular intervals
  • This gives the material its special characteristics over the long term