On 19 May 2021, Civil Engineering Department at Tishk International University (TIUS) organized a scientific trip to Sulaimani General Construction Laboratory. The trip aimed to explain the quality control of the asphalt products that are used in the roadways in Sulaimani and surrounding areas also to show the procedures of Marshal Mix Design of hot mix asphalt concrete.

Asphalt section supervisor in the SGCL Eng.Ari Salih has explained the essentials of good quality asphalt mixes and tips to overcome the problems on site, after that Eng.Chya Moahmmed has explained the steps of marshal mix design in the lab, besides that the students given the chance to ask questions related to the mix design and quality control at the laboratory. The trip was supervised by Mr. Ilham Ibrahim and attended by 4th grade students of Civil Engineering Department at TIUS.