Table of Contents

## What are the different grades of concrete and their ratios?

Different types of concrete grades and their uses

Concrete Grade | Mix Ratio (cement : sand : aggregates) | Compressive Strength |
---|---|---|

M7.5 | 1 : 4 : 8 | 1087 psi |

M10 | 1 : 3 : 6 | 1450 psi |

M15 | 1 : 2 : 4 | 2175 psi |

M20 | 1 : 1.5 : 3 | 2900 psi |

**What are the different grade of concrete?**

Concrete grades include; C7/8 Concrete, C10 Concrete, C15 Concrete, C20 Concrete, C25 Concrete, C30 Concrete, C35 Concrete and C40 Concrete.

**What are the proportions of concrete?**

Typically, a mix is about 10 to 15 percent cement, 60 to 75 percent aggregate and 15 to 20 percent water. Entrained air in many concrete mixes may also take up another 5 to 8 percent.

### What are proportions of nominal mix and grades of concrete?

Nominal mix ratios for concrete are 1:2:4 for M15, 1:1.5:3 for M20 etc.

**What is the proportion of M30 grade concrete?**

I. STIPULATIONS FOR PROPORTIONING

A | Grade Designation | M30 |
---|---|---|

D | Minimum Cement Content | 320kg |

E | Maximum Cement Content | 450kg |

F | Maximum W/C ratio | 0.45 |

G | Workability | 75mm |

**What is the proportion of M25 grade concrete?**

M25 grade concrete ratio is 1:1:2 mixture of cement, fine aggregates and course aggregate in which one part is cement, one part is sand and two part is aggregate. The degree of preparation of the concrete is selected based on the m25 grade concrete mix design.

#### What is the ratio of M40 grade concrete?

A Grade M40 concrete with a mix proportion of 1:1:2:0.35 (cement: sand: granite: water-to-cement ratio) was used for all concrete mixes.

**What is the ratio of M20 grade concrete?**

M20 concrete mix ratio:- M20 concrete mix ratio is 1:1.5:3, made of mixture of cement, sand and aggregate in which one part is cement, 1.5 part is sand and 3 part is aggregate or stone.

**What is ratio of M40?**

## What is M50 grade concrete?

For M50 concrete mix using 100% river sand with admixture yields strength of 61.20MPa at 28 days, however with 70% replacement of natural sand by M-sand yields compressive strength of 68.60MPa with admixture, which is 12.09% higher than the controlled concrete.

**What are the regular grades of concrete and their uses?**

Regular Grades of Concrete and their Uses Concrete Grade Mix Ratio Compressive Strength Compressive Strength M25 1 : 1 : 2 25 MPa 3625 psi M30 Design Mix 30 MPa 4350 psi M35 Design Mix 35 MPa 5075 psi M40 Design Mix 40 MPa 5800 psi

**What is the mix ratio of concrete grade?**

Designed Mix Ratio of Concrete Concrete Grade Mix Ratio Compressive Strength Compressive Strength Concrete Grade Mix Ratio MPa (N/mm2) psi M5 1 : 5 : 10 5 MPa 725 psi M7.5 1 : 4 : 8 7.5 MPa 1087 psi

### What grade of concrete is C30?

One of the lower strength commercial grades is C30. Also known as ST3 or PAV1, C30 grade is mostly used during pavement construction. C30 is designed to withstand 30 Newton/28 day strength and is strong enough to use in reinforced bases, any outside paved area, or other lighter external applications.

**What is the ratio of cement to water for concrete M10?**

For one cu m, calculate the cement, sand, and aggregate with 0.5 ratios of water for the following grades of concrete M10, M15, M20, M25, and M30. DRY VOLUME 1.54 14.83. C.FT