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  1. 1 sty 1992 · Concrete characteristics according to Eurocode 2. Strength and deformation characteristics of concrete according to Eurocode 1992-1-1

  2. 1 sty 1992 · Table of concrete design properties according to Eurocode 2 (EN1992-1-1) including compressive strength, tensile strength, elastic modulus, min. reinforcement.

  3. Grade of concrete is defined as the minimum strength the concrete must posses after 28 days of construction with proper quality control. Grade of concrete is denoted by prefixing M to the desired strength in MPa.

  4. Standardised prescribed mixes should conform to Tables 2 and 3 in this chapter. Mixes should also be designed for the expected conditions of the geographical location of the site and the location of the concrete element in the structure.

  5. The Mix Ratio for C20, C25, C30, C35, and C40 Concrete. Each classification of concrete is assigned a mix ratio, which specifies the proportions of the various ingredients needed to achieve that particular strength. The mix ratios for C20, C25, C30, C35, and C40 concrete are as follows: C20: 1:2:4; C25: 1:2:3; C30: 1:1.5:3; C35: 1:1:2; C40: 1:1:1.5

  6. Concrete design and specification should comply with the relevant British Standards. Mix design should take account of strength and durability, and follow recognised standards and practices.

  7. BS 8500-1. BS EN 206-1. 3.1.6 Concrete specification. Concrete shall be specified correctly to ensure adequate strength and durability. Issues to be taken into account include: concrete in non-hazardous conditions. exposure to climatic and atmospheric conditions. exposure to aggressive ground conditions.

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