UKH Journal of Science and Engineering <p><em>UKH Journal of Science and Engineering</em> (UKHJSE) is a semi-annual academic journal<strong>&nbsp;</strong>published by the University of Kurdistan Hewlêr, Erbil, Kurdistan Region, Iraq. UKHJSE publishes original researches in all areas of Science and Engineering. UKHJSE is a Peer-Reviewed Open Access journal with CC BY-NC-ND 4.0&nbsp;license. UKHJSE provides immediate, worldwide, barrier-free access to the full text of research articles without requiring a subscription to the journal, and has neigther article processing charge (APC) nore article submission charge (ASC). UKHJSE Section Policy includes three types of publications; Articles, Review Articles, and Letters. UKHJSE has an e-ISSN: 2520-7792; and a member of Crossref, DOI:&nbsp;<strong>10.25079/issn.2520-7792.</strong></p> University of Kurdistan Hewlêr en-US UKH Journal of Science and Engineering 2520-7792 <p>Authors who publish with this journal agree to the following terms:<br> 1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY-NC-ND 4.0] that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.<br> 2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.<br> 3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).<br> </p> Assessment of the Carbonate Rocks of the Pila Spi Formation for Cement Industry, in Permam Mountain, Erbil, Iraqi Kurdistan Region <p>The Pila Spi Formation is exposed in Permam Mountain forming its carapace, and continuous ridges for few hundreds of&nbsp;kilometers. The rocks of the formation are mainly dolomitic limestone, dolomite, and limestone with various proportions.&nbsp;The thickness of the formation in Permam Mountain is about 100 m. Nine samples are collected from the Pila Spi Formation&nbsp;along a recently road cut across Permam Mountain. The sampling interval varies from 10 to 15 m. The collected samples&nbsp;were subjected to X-ray fluorescence (XRF) spectroscopy test to indicate the percentages of the main oxides in the samples.&nbsp;The results showed that the chemical composition of samples No. 1 and 9 meet the Iraqi standards for cement industry,&nbsp;whereas the remaining samples (Nos. 2–8) do not meet the Iraqi standards, and their total thickness is 80 m. To evaluate the&nbsp;suitability of the exposed rocks for cement industry in the sampled section within the Pila Spi Formation, different ratios of&nbsp;sample No. 1 were mixed with different ratios of a sample called sample No. A, it represents a mixture of samples No. 2–8.&nbsp;The mixing ratios are: (Sample No. 1/sample No. A) 50/50, 60/40, 70/30, 80/20, and 90/10. The same procedure was&nbsp;repeated for Sample No. 9. Another attempt was performed by mixing equal ratios of samples Nos. 1 and 9 with the same&nbsp;performed ratios with sample No. A.The chemical compositions of the samples were indicated using XRF test. The results&nbsp;showed that the best mixing ratios for the cement industry are 90:10, 80:20, and 70: 30 (samples Nos. 1+9: sample No. A).</p> Varoujan K. Sissakian Dalyia A. Hamoodi Hassan O. Omer Sazan A. Nyazi ##submission.copyrightStatement## 2019-03-01 2019-03-01 3 1 1 9 10.25079/ukhjse.v3n1y2019.pp1-9