The Effect of Increasing Amounts of Neoprene Aggregate on the Abrassive Resistance of Concrete.
School Name
Spring Valley High School
Grade Level
11th Grade
Presentation Topic
Physics
Presentation Type
Non-Mentored
Abstract
Concrete has existed for hundreds of years, but has only recently seen major innovations (Idorn, 2005). The purpose of this experiment was to determine how increasing amounts of neoprene aggregate affected the abrasive resistance of concrete. It was hypothesized that as the amount of neoprene rubber approaches 0.02 parts of rough aggregate replacement, the abrasive resistance of the concrete specimen will peak. This was due to a balance of the abrasive resistance from the neoprene aggregate and the cohesive strength from the natural aggregates being reached. Portland cement, river sand, and gravel were mixed together. These dry ingredients were then mixed before water was added. The concrete mixture was then stirred and placed into cube molds, with 3 groups containing increasing amounts of neoprene rubber. After 21 days, the abrasive resistance was tested using the Bohme method. A One Way Anova test found that neoprene aggregate did have an affect on the abrasive resistance of concrete samples (F(3,116) = [14.196], p = 0.04988), as p < 0.05, showing a significant difference between the levels of neoprene aggregate. The results of this experiment suggest that an addition of 0.02 parts neoprene aggregate to concrete is effective at increasing the abrasive resistance of the sample.
Recommended Citation
Maddipati, Ashish, "The Effect of Increasing Amounts of Neoprene Aggregate on the Abrassive Resistance of Concrete." (2025). South Carolina Junior Academy of Science. 103.
https://scholarexchange.furman.edu/scjas/2025/all/103
Location
PENNY 216
Start Date
4-5-2025 11:15 AM
Presentation Format
Oral and Written
Group Project
No
The Effect of Increasing Amounts of Neoprene Aggregate on the Abrassive Resistance of Concrete.
PENNY 216
Concrete has existed for hundreds of years, but has only recently seen major innovations (Idorn, 2005). The purpose of this experiment was to determine how increasing amounts of neoprene aggregate affected the abrasive resistance of concrete. It was hypothesized that as the amount of neoprene rubber approaches 0.02 parts of rough aggregate replacement, the abrasive resistance of the concrete specimen will peak. This was due to a balance of the abrasive resistance from the neoprene aggregate and the cohesive strength from the natural aggregates being reached. Portland cement, river sand, and gravel were mixed together. These dry ingredients were then mixed before water was added. The concrete mixture was then stirred and placed into cube molds, with 3 groups containing increasing amounts of neoprene rubber. After 21 days, the abrasive resistance was tested using the Bohme method. A One Way Anova test found that neoprene aggregate did have an affect on the abrasive resistance of concrete samples (F(3,116) = [14.196], p = 0.04988), as p < 0.05, showing a significant difference between the levels of neoprene aggregate. The results of this experiment suggest that an addition of 0.02 parts neoprene aggregate to concrete is effective at increasing the abrasive resistance of the sample.
