1. The document discusses using waste plastic strips as a cheaper alternative to geogrids and geotextiles for reinforcing soils in road subgrades. 2. Laboratory tests were conducted where high density polyethylene strips of different sizes were mixed with sand in varying percentages by weight. 3. The results showed that adding plastic strips increased the California Bearing Ratio (CBR) and secant modulus of the sand, with higher increases at higher strip contents and aspect ratios. Reinforcement improved strength by allowing soil particles to interact and resist penetration.