Soil stabilization is commonly adopted when locally available soil does not satisfy engineering requirements forfoundations, embankments, pavements, or fills. At the same time, the disposal of non-biodegradable plastic waste presents anenvironmental challenge. This study investigates the use of waste plastic bottle strips as a randomly distributed soil additive. Plasticbottles were cut into approximately 15 mm × 15 mm strips and mixed with a locally collected soil at selected percentages. The soilwas characterized by sieve analysis and specific-gravity testing, and Standard Proctor compaction tests were conducted on virginsoil and on soil containing 0.6%, 0.8%, and 1.0% plastic strips. The soil was reported as poorly graded sand with a specific gravityof 2.68. Maximum dry density increased from 1.80 g/cm³ for virgin soil to 1.83 g/cm³ at 0.6% plastic and 1.90 g/cm³ at 0.8%, thendecreased to 1.87 g/cm³ at 1.0%. The corresponding optimum moisture contents were 14%, 16%, 14%, and 14%. The reportedoptimum dosage is therefore 0.8%, producing an approximately 5.6% increase in MDD relative to untreated soil. The resultsindicate that waste plastic strips can influence the compaction characteristics of sandy soil and may offer a useful reuse route fordiscarded plastic.Index Terms: soil stabilization, waste plastic, plastic bottle strips, Standard Proctor test, maximum dry density, optimum moisturecontent.