Rejeb,S. K. and Najim, K. B. (2002)’ Study the effect of CaSO4 salt on the concrete properties by using destructive and non-destructive tests’ Fourth scientific conference for military of housing and construction, Iraq

Khalild K B (2002) “Using High Performance Steel-fiber Concrete to Improve Impact Strength Property” MSc thesis, University of Technology, Iraq.

Najim, K. B.’ Modulus of elasticity and impact resistance of Chopped Worn-Out tiers concrete’ Iraqi journal of Civil Engineering, Anbar university, 2005.

Najim, K. B.’ Evaluation of dynamic properties of high performance steel fibers concrete by using non-destructive tests, Iraqi journal of Civil Engineering, Anbar university, 2005.

Al-Mishhadani, S. A.  Rejeb,S. K. and Najim, K. B.’ The effect of steel fibers on the mechanical properties of high performance concrete’ Al-Rafidain Engineering Journal, Musol University, 2005.

Najim, K. B.’ Mechanical Properties of fibers waste tires concrete’ Iraqi Journal of Civil Engineering, Anbar university, 2007.

Al-Hadithi, A., Najim,K. B, and Thaker T.A.’ Behavior of polymer modified No-fine aggregate beams’ Iraqi Journal of Civil Engineering , Anbar university, 2007.

Najim, K. B.’ Effect of admixture type on compressive strength and modulus of elasticity of rubber tires waste concrete’ Anbar Journal for Engineering Sciences, Anbar university, 2007.

Al-Khatib. A. and Najim, K. B.’ Suggested method to deal with site coarse aggregate to produce better concrete’ Anbar Journal for Engineering Sciences, Anbar university, 2007.

Najim, K B, and Hall MR (2010) ‘A review of the fresh/hardened properties and applications for plain-(PRC) and self-compacting rubberized concrete (SCRC)’ Construction and Building Materials Journal (Elsevier), Vol. (24), issue (11), PP. 2043-2051

Al-Mishhadani, S, A., Rejeb,S. K, and Najim, K. B.(2011)’ Improving the modulus of elasticity of high performance concrete by using steel fibers’ The first engineering conference , college of engineering, Anbar University, 2011, Anbar, Iraq, published in a special issue in Anbar Journal of Engineering Sciences, PP: 205-2016 .

Najim, K B, and Hall MR (2011) ‘Thermo-physical and mechanical analysis of Self-Compacting Rubberised Concrete (SCRC) mix classes. Proceedings of the 13th International Conference on Non-Conventional Materials and Technologies (13 NOCMAT 2011) 22nd – 24th September, Changsha, Hunan, China.

Najim, K B, and Hall MR (2011) Fresh properties, porosity and thermo-physical properties of Self-Compacting Rubberised Concrete (SCRC)” Proceedings of the 13th International Conference on Non-Conventional Materials and Technologies (13 NOCMAT 2011) 22nd – 24th September, Changsha, Hunan, China.

Najim K.B, and Hall MR (2011) ‘Thermo-physical behaviour and dynamic thermal properties of crumb rubber modified concrete for energy efficiency in buildings, in the 1st conference of Engineering and sciences, Iraqi Embassy- cultural attaché, 1-2 October 2011, UCL, London

Najim, K B, and Hall MR (2012) ‘Mechanical and dynamic properties of Self-compacting rubberized concrete’ Construction and Building Materials Journal (Elsevier) Vol. (27), issue (1), PP 521-530

Hall MR and Najim, K B (2012) ‘Micro structural characterization and mechanical/ dynamic properties of experimentally-optimized plain rubberised concrete (PRC), in the 14th International Conference of structural Faults + Repair, 3–5 July, Edinburgh, UK.

M H Hall, K B Najim, D P Keikhaei “Soil stabilisation and earth construction: materials, properties, and techniques” Chapter 9: Modern earth buildings: Materials, engineering, construction and applications, Woodhead Publishing, Cambridge, UK, PP: 222-255.

Najim K B, and Hall MR (2012) ‘Experimental validation of plain/self-compacting rubberised concrete (PRC/SCRC) mix designs for structural applications, in the 14th International Conference of structural Faults + Repair, 3–5 July, Edinburgh, UK.

Hall M R, Najim K B, Hopfe C J., (2012) ‘Transient thermal behavior of crumb rubber-modified concrete and implications for thermal response and energy efficiency in buildings, Applied Thermal Engineering (Elsevier), Vol. 33-34, PP.77-85

Najim, K B, and Hall MR (2012)’ workability and mechanical properties of crumb rubber concrete.in Proceedings of the Institution of Civil Engineers ICE, construction Materials.

Najim, K B and Hall MR (2013) ‘Crumb rubber aggregate coatings/ pre-treatments and their effects on interfacial bonding, air entrapment and fracture toughness in self-compacting rubberised concrete (SCRC)’ Materials and Structures Journal (Springer)Vol. (46), issue 12, PP: 2029-2043.

Najim, K B (2012)’ Determination and Enhancement of Mechanical and Thermo-physical Behaviour of Crumb Rubber-modified Structural Concrete”, PhD thesis, The University of Nottingham, Nottingham, UK.

Najim, K B and Al-jumaily I, (2013) ’Thermo-physical behavior and Mechanical properties of experimentally enhanced Rubberised Concrete Block’ BOND21 – Joint International Confernce on Nanoscience, Engineering, and Management Bayview Beach Resort, BatuFerringhi, Penang, Malaysia, 19-21 August 2013.

Najim, K B and Mahmod ZS ’Using of cement kiln dust as a mineral admixture to produce sustainable Self-compacting concrete’ 6th international conference on developments in system engineering, 16th to 18th December 2013, Abu Dhabi, UAE.

Khalid B. Najim, Zaher Shaker, Abdul-Khaliq Maraee Atea (2014) ‘Experimental investigation on using Cement Kiln Dust (CKD) as a cement replacement material in producing modified cement mortar, Construction and Building Materials Journal (Elsevier) Vol. (55),  PP:5-1

Khalid B. Najim(2014) ‘External load-bearing walls configuration of residential buildings in Iraq and their thermal performance and dynamic thermal behavior, Energy and Buildings (Elsevier), 84(2014), PP:169-181.

Najim, K B and Al-jumaily I (2014) ’ Thermo-physical behavior and Mechanical properties of experimentally enhanced Rubberised Concrete Block’ Advanced Materials Research Journal, 925:169-174

Matthew Hall and Khalid B. Najim(2014) ‘Structural behavior and durability of steel-reinforced structural Plain/Self-Compacting Rubberised Concrete (PRC/SCRC) Construction and Building Materials Journal (Elsevier), 73,PP: 490-497.

Khalid B. Najim and Obaid T F (2015) ‘Assessing and improving the thermal performance of reinforced concrete-based roofing systems in Iraq, Energy and Buildings (Elsevier) 89 PP: 213-221.

Khalid B. Najim, Ibrahim AL-Jumaily, Abdulkhaliq M Atea (2016)''Characterization of sustainable high performance self-compacting concrete produced using CKD as a cement replacement material'' Construction and Building Materials (ELsiver)103, PP:123-129.

Khalid B. Najim (2016) ' Can image processing technique be used as a non-destructive test in predicting concrete compressive strength?' IEC2016 2nd International Engineering Conference on Developments in Civil & Computer Engineering Applications, February 20-21, Ishik University.

Khalid B. Najim (2016) 'Examining the use of image processing technique as a non-destructive test in evaluating concrete compressive strength' 9th International Concrete Conference, 4 – 6 July, Dundee, Scotland, UK.

Khalid Najim, Abdulrahman Saeb, Ibrahim A. Al-Jumaily (2016) “Mechanical strength and structural behavior of recycled steel fiber Self-compacting concrete”, 2nd International Conference on Architecture, Materials, and Construction, Dec. 2016, Dubai, UAE

Khalid Najim (2017) 'Strength evaluation of concrete structures using ISonReb linear  regression models: Laboratory and site (case studies) validation, Construction and Building Materials (ELsiver) 149, PP: 639-649.

Khaleel Younis, Harith Sabah Naji, Khalid Najim (2017) 'Cracking tendency of self-compacting concrete containing crumb rubber as fine aggregate' Conference: The International Symposium on Materials Science and Engineering ISMSE, At kuala Lumpur, Malaysia.

Khaleel Younis, Harith Sabah Naji, Khalid Najim (2017) 'Rheological behavior of self-compacting concrete incorporating crumb rubber particles as fine aggregate' 3rd International Engineering Conference on Developments in Civil & Computer Engineering Applications IEC2017, At Ishik University & Erbil Polytechnic University, Erbil, Kurdistan, Iraq

Khaleel Younis, Harith Sabah Naji, Khalid Najim (2017) 'Cracking Tendency of Self-Compacting Concrete Containing Crumb Rubber as Fine Aggregate, Key Engineering Materials Journal 744(3), PP:55-60

Khaleel Younis, Fatima Sh. Ahmed, Khalid Najim, (2018) Self-Compacting Concrete Reinforced with Steel Fibers from Scrap Tires: Rheological and Mechanical Properties”, 1st International Engineering Conference, Erbil, Iraq, published in Eurasian Journal of Science and Engineering, (2018), 4 (1), PP:1-11.

Khalid B Najim, Hamad M Hasan, Ehaab W Jarallah “Free Vibration Analysis of Rotating Clamped-Clamped Multi-Layered Cylindrical Shells Containing Functionally Graded Middle Layer, Al-Nahrain Journal for Engineering Sciences, 21 (1), PP: 153-160.

Khalid Najim, Abdulrahman Saeb, Zaid Al-Azzawi (2018) “Structural Behavior and Fracture Energy of Recycled Steel Fiber Self-Compacting Reinforced Concrete Beams” Journal of Building Engineering (Elsevier),17, PP:174–182.

Ahmed Mouthanna, Hamad M. Hasan, Khalid Najim, (2018) 'Nonlinear Vibration Analysis of Functionally Graded Imperfection of Cylindrical Panels Reinforced with Different Types of Stiffeners, 11th International Conference on the Developments in eSystems Engineering(DeSE), Special Session: Sustainable Engineering and Environmental Technologies, 2nd – 5th September 2018, At: Cambridge, England, UK (IEEE).

Khaleel Younis, Fatima Sh. Ahmed, Khalid Najim, (2018) Effect of Recycled-Steel Fibers on Compressive Strength and Shrinkage Behavior of Self-Compacting Concrete, 11th International Conference on the Developments in eSystems Engineering (DeSE), Special Session: Sustainable Engineering and Environmental Technologies, 2nd – 5th September 2018, At: Cambridge, England, UK (IEEE).

Khalid Najim, Saif Ibrahim, (2018) 'The effect of incorporation recycled concrete aggregate on the rheological properties of SCC using Taguchi approach, 11th International Conference on the Developments in eSystems Engineering(DeSE), Special Session: Sustainable Engineering and Environmental Technologies, 2nd – 5th September 2018, At: Cambridge, England, UK (IEEE).

Ghassan A Hammadi, Khalid B Najim (2019) “Rheological Properties and Mechanical strength of Recycled Concrete Aggregate SCC” 12th International Conference Developments in eSystems Engineering 2019 Robotics, Sensors and Industry 4.0, Special Session: Sustainable Engineering and Environmental Technologies 7th-10th October 2019At: Kazan, Russia

Saif S Mansoor, Khalid B Najim, Abdulkarim-Talaq Mohammad (2019) “Investigating the Use of Cement Kiln Dust (CKD) in Producing Alkali Activated Concrete” 12th International Conference Developments in eSystems Engineering 2019 Robotics, Sensors and Industry 4.0, Special Session: Sustainable Engineering and Environmental Technologies 7th-10th October 2019At: Kazan, Russia

Mohammed, S.I, Najim,K,B,(2020) “Mechanical strength ,flexural behavior and fracture energy of recycled concrete Aggregate self-compacting concrete” structures (Elsevier), 23, PP: 34-43.