Created: 2024/10/03 00:06

Experiment no. 08

Experiment name: Determination of compressive strength of hydraulic cement mortar

Objective

The objective of this experiment is,

1. To determine the compressive strength of hydraulic cement mortar.

Significance

1. Compressive strength is a key indicator of the quality and durability of cement mortar.
2. Understanding strength development over time helps assess the material's performance in structural applications.

Apparatus

1. Hydraulic compressive testing machine
2. Weights and weighing devices
3. Mortar molds
4. Trowel
5. Glass graduaters
6. Tamper
7. Bowl

Data sheet

Result

The average compressive strength on the 3rd day was determined to be 25.261 MPa, and on 7th day was determined to be 28.703 MPa.

Discussion

The experiment aimed to determine the compressive strength of hydraulic cement mortar at two intervals: 3rd day and 7th day. The results indicate that the strength increases over time as the hydration process progresses. On the 3rd day, the mortar samples achieved an average strength of 25.261 MPa, while the 7th-day samples reached 28.703 MPa. The difference in strength between the 3rd and 7th days reflects the ongoing hydration, contributing to the improved performance of the material over time.

The results suggest that even at early stages, the mortar achieved substantial strength, making it suitable for applications requiring moderate early load-bearing capacity. However, the 7-day results highlight the importance of allowing sufficient curing time to reach optimal strength.