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The ultra lightweight foam concrete of rarely studied density ranges

This study aims to investigate the ultra-lightweight foam concrete of rarely studied density ranges (200–500 kg/m3), looking for the most favorable configuration of properties of such feasible insulating material: compressive strength and thermal conductivity. The conducted tests examined the influence of the density, synthetic, and protein foaming agents and binder type on the properties mentioned above. The wide range of the tested densities below 500 kg/m3 allowed for identifying properties and their dependencies significant for the potential use of foam concrete as a thermal insulation material. The paper is divided into four sections. After this introduction with the review of the recent studies in the discussed field, Section 2 presents the materials applied in foam concrete, the method of its production as well the testing methods. The results of the performed experimental tests with a brief discussion are provided in Section 3. Finally, the main conclusions obtained for the ultra-light foam concrete are summarized. A commercially available ordinary Portland cement CEM I 52.5 R (OPC) and calcium sulphoaluminate cement (CSA) are used in the cement paste. There are several reasons for testing CSA cement as an alternative binder in foam concrete. First of all, CSA can be considered a more environmentally friendly material than OPC since the lower amounts of limestone involved in the production process and lower burning temperature generate reduced CO2 emissions per 1 ton of clinker compared to Portland clinker. Next, the properties of CSA cement, such as short initial and final setting time and high early strength, may be beneficial for ultra-light foam concrete. If you are looking for high quality, high purity, and cost-effective Concrete Foaming Agent, or if you require the latest price of Concrete Foaming Agent, please feel free to email contact mis-asia.

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