Self-compacting concrete is an innovative building material that is able to flow, almost completely filling the formwork space, settle and achieve full compaction under its own weight (i.e. under gravity). Superior fluidity of the concrete mass ensures filling of pores and self-compaction in the structure without the need for any external dynamic loads. The mix is characterized by the sump-flow value(fluidity), density and viscosity, it is easy to place and convenient to work with.
Such mixes are used for filling of structures with congested reinforcement, especially where the density of steel reinforcementis so high that proper compaction cannot be achieved. As self-compacting concrete mixes can create high-quality surface finishes, they are also used for the construction of strong seamless floors, ceilings, etc.
High performance characteristics of the self-compacting concrete mixes are achieved by setting strict requirements for the materials used in the concrete recipe. All concrete mixes by HOUSE BETON LLC are always produced in line with the relevant requirements and mixing technology.The concrete mixture class and mixing recipe of the self-compacting concrete are selected depending on the operational requirements, type of the construction structure, and exposure conditions in the location of the structure. Our managers are ready to provide personal professional advice on choosing the concrete mix to suit your exact needs and your budget. And our highly qualified laboratory technicians will select the raw materials and develop a tailor-made mix recipe for applications of any complexity level. We guarantee high quality of our self-compacting concrete plus delivery to your construction site.
The concrete grade is designated by an alphanumeric code (for example, M-100),which denotes the ultimate compressive strength expressed in kilograms per square centimetre. A higher value means a greater amount of cement in the composition. The grades range from M-50 to M-1000, while the most popular grades are between 100 and 500. The higher the strength grade, the stronger, more frost-resistant and more durable the concrete.
Today, design specifications often define the class of concrete mix, which shows properties of the mix more precisely. The class of concrete mix denotes the permissible deviation from the mix quality. It shows the strength value obtained for an actual sample while the grade shows the estimated strength only. The class of concrete is marked with the letter ‘B’, and ranges from 3.5to 80. Classes B7.5 to B40 are used in domestic construction.
Mixes of class B30 offer increased strength performance. They are used in applications, where the increased strength, waterproofness, and frost resistance are required, including concrete casting of foundation slabs, floor slabs, vertical structures, structural columns, reinforced concrete items, as well as industrial floors that are intended for further topping treatment.
B35 is a high strength concrete used in construction projects, where constant heavy loads are expected. Possible areas of application include bridge construction, hydrotechnical industry, foundations of high-rise buildings, industrial floors, etc.
B40 is an extra strong concrete mix. It is used in construction projects, where constant heavy loading in aggressive environments is expected. B40 has improved waterproofing properties and is chemically resistant.
SF is a classification of highly workable self-compacting concrete mixes according to the slump flow value, which describes flowability of a fresh mix. SF2 is suitable for normal structures.The slump flow value of SF2 is 66 to 75 cm.
SF is a classification of highly workable self-compacting concrete mixes according to the slump flow value, which describes flowability of a fresh mix. SF3 is used for vertical structures and structures with complex shapes. The slump flow value of SF3 is 76 to 85 cm.
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