# 4000 PSI Concrete Mix Ratio Calculator

Cement: ${cement.toFixed(2)} lbs

Sand: ${sand.toFixed(2)} lbs

Gravel: ${gravel.toFixed(2)} lbs

Water: ${water.toFixed(2)} lbs

`; document.getElementById('result').style.display = 'block'; }Here’s a comprehensive table detailing everything you need to know about the 4000 PSI concrete mix ratio, including the components, their proportions, weight, and yield.

### 4000 PSI Concrete Mix Ratio Table

Component | Proportion | Weight (lbs) | Cubic Feet per Yard | Total for 1 Cubic Yard |
---|---|---|---|---|

Cement | 1 part | 94 | 1 | 94 lbs |

Sand | 2 parts | 100-120 | 1.5 | 200-240 lbs |

Gravel (or Stone) | 3 parts | 1500-1800 | 2.5 | 4500-5400 lbs |

Water | Varies (0.4 to 0.6) | 8.34 (per gallon) | 0.02 (for 1 gallon) | 20-30 gallons (for 1 cubic yard) |

### Key Points:

**Total Proportions**: A typical mix for 4000 PSI concrete is**1:2:3**, meaning 1 part cement, 2 parts sand, and 3 parts gravel.**Water-Cement Ratio**: The water-cement ratio is crucial for strength and durability. A ratio of**0.4 to 0.6**is often used, which means that for every pound of cement, you should use**0.4 to 0.6 pounds of water**.**Weight Considerations**:- The weight of sand can vary based on moisture content and type (e.g., fine vs. coarse).
- The weight of gravel also varies depending on its size and type.

**Yield**: This mix generally yields**approximately 1 cubic yard**of concrete.

### Example Calculation:

To prepare **1 cubic yard** of 4000 PSI concrete:

**Cement**: 94 lbs (1 bag)**Sand**: ~200-240 lbs (adjust based on specific gravity)**Gravel**: ~4500-5400 lbs (adjust based on specific gravity)**Water**: 20-30 gallons (depending on the water-cement ratio)

### Additional Considerations:

**Admixtures**: Depending on the application, you might add admixtures such as superplasticizers or retarders to enhance performance.**Mixing**: Ensure thorough mixing to achieve a uniform consistency and strength.**Testing**: It’s advisable to test the concrete for compressive strength before full-scale application to ensure it meets the 4000 PSI requirement.