How to mix concrete (? cement, ? sand,? aggregate)? How many "parts" of cement, sand, aggregate... to product concrete?
How many "parts" of cement, sand, aggregate... to product concrete?
Answers: 3 gravel , 2 sand , and 1 cement will give you a plain mix of concrete...you can change the strengths by varying the ratio of sand and gravel...
2 shovels sand,1shovel aggregate (rock),1 shovel portland cement.