Concrete bedding is a prerequisite for the construction of reliable foundations with maximum service life. Main functions: Protection of the concrete mass of the foundation against infiltration of cement slurry into the soil, prevention of the adverse effects of soil on concrete through the correct load distribution, improvement of the performance indicators of the foundation, shrinkage control, easier installation of reinforcing bars.
Besides, concrete bedding provides a flat surface for placement of the foundation concrete, which ensures more convenient and quick performance of the construction works and allows you to calculate the required amount of concrete mix for the foundation more precisely.
Usually, construction engineers select the concrete class most suitable for your construction project themselves. However, if you still have any questions, 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 the high quality of our concrete mixes for the construction of foundation bedding and compliance with all relevant requirements and standards, 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.
B7.5 is used as a mix for the construction of concrete beddings or insulating bases for strong concrete mixes.
B10 is a mix at an affordable price, ideal for cost optimisation. It is used in domestic applications, for the construction of concrete beddings, laying park and garden footpaths.
В12.5 is a budget-friendly mix that is commonly used in the construction projects. It is used in domestic construction as a concrete mix when pouring beddings, foundations for small structures, and as an underlayment for paving tiles or slabs on park and garden footpaths.
Р3 — workability factor measured by concrete slump test, with a slump of 10-15 cm. The mix is used for the construction of foundations, stairs, screeds, floors and for pouring into form works. This concrete mix must only be poured using special construction tools: vibrating pokers, vibrating screeds, concrete laying machines.
Р4 — workability factor measured by concrete slump test, with a slump of 16-21 cm. The mix is used in applications of any complexity level. Due to good workability (fluidity), it fills a form work completely, so that no pores or air voids are formed. The mix can be transported over a long distance by a concrete pump or a chute system.
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