https://www.facebook.com/InternationalFoamConcreteInstitute. You can also keep it wet after it has set with sprinkling water onto it. concrete for block / panel production (e.g. This page describes how to make FC and what influences the “quality”. But hang-on, this was the simple version! The size depends on your building method and all the other factors that impact in the thickness of the wall. Typically, specified characteristics are a wet cast density that’s +/- 5lb/cuft, and a minimum strength in psi at 28 days. So far I found only one company, http://www.cellularfibroconcrete.com offering this product. Small bubbles are stronger than big ones, the optimum size is 0.5 mm. Foam concrete, also known as foamed concrete, or 'foamcrete', is a versatile cement based and porous lightweight building material that can be used for a wide range of building applications around your home. Some more on this, 8 pages and some interesting points. ft. which develops a corresponding compressive strength range of 50 PSI - … When all the available water is used for the curing, the process stops. I found one study that compared 3 different foaming agents. Can anyone help on this, or know a industrial chemist that is willing to help? Each type of foaming agent has its own optimum foam density, for creating the desired FC density. Equipment needed for the Slump Test: Slump test cone, non-porous base plate, measuring scale, temping rod. Risk of plastic shrinkage or settlement cracking is significantly lower than that of standard concrete. They can vary from a home-made, see https: //www.etsy.com search for foam-generator etc. Specialized equipment of various size and production capacities can be used depending on project needs. Make corrections as follows: Slump too low: Add water in measured amounts to bring the slump within the specified range. It also has to be done “gently” as not to collapse the foam. Internal curing can be assisted by the use of materials that absorb water quickly when whetted, but releases it slowly, or needs forces to suck the water out of the material. Concrete Mix can be used Quikrete 80 lb. The dry mix method involves on-site production of the slurry (cement, fly ash and water). It should not collapse before the FC is set sufficiently to hold its form, this can be up to 5 hours! Not all compressors are the same! It is also a good idea to make a test sample(s) of each batch. Curing is a chemical process. Foam concrete pumps easily with relatively low pressures via hose over long distances. Fine silica sand of different sizes 0.6, 1.18 and 2 mm is often used. In this unit, the mix is blended with foam thoroughly. Use same manufacturer as the batch. The typical density range is 20-60 lbs. For suppliers of foaming agents go to Foaming agents. This site uses Akismet to reduce spam. As a result, the FC is weaker at that point. You need to decide on the density FC you want to make. As a result you end up with a mix that is lighter than “normal” concrete. The range of w/c ratio used were 0.5, 0.45, 0.4, 0.35 and 0.3, while s/c was 1.0 for all mixes in this work. You have enough moulds for your batch, plus some spare! These can last a long time, one hundred times is possible, done this myself. Try it and let me know. */, (We will only use your email address to send you our newsletter.). We here make the assumption that it is up to standard. When placing in excavations, foam concrete conforms to every sub grade contour. The optimum water / cement ratio is also different for each type / brand of foaming agent. Add in any additive or colorant you wish to use in … Check the claims the Foam agent manufacturer makes. The material is naturally self-leveling and fills the smallest voids, cavities and seams. Mix Design. The combination of the strength and the insulation value makes FC an ideal building material. Adding super-plasticizers and accelerator to the mortar mix can also influence the bubble size and the distribution of the bubble size. FOAM AGENT ISOCEM S / BN 100% VEGETABLE, ISOCEM S / BN is the new product of the Isocem range, foaming agents for the production of Foam concrete. This maybe because the water could leach out of the foam, but this is just my speculation. It is more concentrated and 100% plant origin. The characteristics of the foam that make a “good” foamed concrete are: Stability, how long the foam keeps its bubbles. Most foaming machines use the dry method, and it is possible to make a small one yourself. There is a method of making FC where they put the foaming agent in with the mortar mix when it is all in a special high speed mixer. Propump can offer a full mix design service based on many years of experience both in the field and in the test house. 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