C30 concrete is very strong. The correct ratio is 1:2:3 = cement, sand , gravel. 1 bucket cement to 2 buckets sand to 3 (or more) buckets of gravel + water . For 1 cM^3 , take half cubic meter of cement and one cubic meter of sand (fine aggregate) and 1.5 cubic meters of gravel (rough aggregate) +water.
What is the ratio of concrete grade 30?
Concrete Grade
--------------------------
M20
Standard Grade of Concrete
M25
M30
What does C30 concrete mean?
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. C35 Concrete Grade.
What is the ratio of M30 grade concrete?
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 concrete mix M30?
The proportion of ingredients is as follows for the concrete mix M30 (In liters): CEMENT 35 It. Fine aggregates and coarse aggregates in a 1: 0.75: 1.5 ratio, keeping the water-cement ratio between 0.4 and 0.6. Also, read: What Is Bulkage of Sand (Fine Aggregate )
How much cement do I need for 32 MPa concrete?
Where a more structural concrete is required you may need to add neat cement to the premixed bag. As a guide, an addition of 1kg to 1.5kg per 20kg bag of Concrete Mix can be used to achieve around 32 MPa concrete (under normal conditions).
What is C in concrete grade?
C Grade concretes are measured using cubic concrete testing. This is where samples of concrete are taken from batch of concrete and tested to ensure the concrete is of suitable strength.2 May 2019
What is the C value of concrete?
The coefficient of thermal expansion of Portland cement concrete is 0.000009 to 0.000012 (per degree Celsius) (8 to 12 microstrains/°C)(8-12 1/MK).
What does it mean C 25 concrete?
compressive strength
What strength is C30 37 concrete?
30 MPa
What is C30 grade concrete?
C30 Concrete Grade 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 mix for 30 MPa concrete?
To make 1 cubic metre of 30 Mpa concrete you will need to mix 10 bags of cement with 0,65 cubic metres of sand and 0,65 cubic metres of stone.
What is the best concrete mix for a driveway?
The best concrete mix for driveways is at least 3500 psi compressive strength and 5-6 inches thick over compacted gravel and earth with a water to cement ratio of . 50 and aggregate less than an inch.