A Cure for Concrete

Overview

Objectives/Goals The object of my project is to determine which of the different methods of curing concrete gives you the strongest concrete. Methods/Materials I made twelve bars of concrete. I cured three samples in plastic, three in burlap, three in sand, and three samples in nothing. I let them cure for twenty-eight days with one misting of water every day. Then I tested their strength by testing how much weight they held untill they broke. Results The mean of the weight held by the plastic samples was 1077 N (242 pounds). The mean of the weight held by the burlap samples was 1250 N (281 pounds). The mean of the weight held by the sand samples was 1219 N (272 pounds). The mean of the weight held by the samples with nothing was 1014 N (228 pounds). Conclusions/Discussion My conclusion is that burlap is the best way to cure concrete out of the methods tested. I conclude the burlap won because it allowed the concrete to breathe while it also retained the moisture.

Competition history

• CSEF 2003 Structural Capability & Strength of Materials (Junior Division Only) · Entry J1813

Resources

• CSEF project summary ↗

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