Abstract—This paper presents experimental results of four prismatic concrete reinforced beam and strengthened by NSM (Near surface mounted) FRP (Fiber Reinforced Polymer) reinforced technique, with additional roots planted in the concrete. The strengthening technique causes load capacity of beams to increase from (6%-8%).A decrease in mid-span deflection was also observed from (4%-5%).Using this technique gave increasing in flexural beam resistant under the same conditions and this increasing was also noted in shear beam resistant. Index Terms—Prismatic beam, concrete, carbon fiber reinforced polymer, strengthening. I. INTRODUCTION Many researchers have focused on the importance of bonding and the type of material that used in bonding between concrete and CFRP to form composite Structural section and previous research indicate to use many materials to increase the bonding strength, for examples: Sikadur 30, 31, 32 and 330 and other materials. In this paper was used roots technology that existing in the teeth as a way to increase the bond between concrete and carbon fiber reinforced polymer by using NSM technique, and this will positively influence for thinking to use other ways. Using fiber-reinforced polymer (FRP) was old technique to strength concrete for bridges and building and has been used widely in the last decade. FRP has been used in different ways and techniques to find a new material that effective and to ensure long service life of the used structure. The near-surface mounted (NSM) was one of innovative ways that was as strengthening techniques style by place FRP reinforcing bars and strips into grooves precut into the concrete cover in the tension region of the strengthened concrete member Raafat El- Hacha, Sami H Rizkalla [1]. Shear and flexural strengthening using FRP materials has been the subject of considerable research, mainly on the use of externally bonded laminates and bars. However, internally bonded NSM reinforcement provides a viable alternative with numerous advantages as reported by De Lorenzis and Teng [2], [3]. For example, the internally bonded NSM reinforcement can be more easily anchored Manuscript received July 15, 2017; revised November 28, 2017. Douread R. Hassen, Abdul Aziz. Abdul Samad, Noridah Binti Mohamad and Alyaa A.Azeez are with Faculty of Civil and Environmental Engineering, University Tun Hussein Onn Malaysia (UTHM), 86400 Parit Raja, Batu Pahat, Johor, Malaysia (e-mail: dou_444@yahoo.com, azizs@uthm.edu.my, alyaaabdulrazzaq@yahoo.com.) into adjacent structural members, possesses a better resistance to de-bonding, and is particularly more suitable for strengthening negative moment regions of slabs and beams. In addition, it may require less amount of concrete surface preparation as only cutting the grooves is required, without the need for removal of plastering, smoothening of the concrete surface and removal of weak concrete laitance. The NSM reinforcement can also be easily protected by the concrete cover from mechanical damage, fire and vandalism, and the strengthened element is aesthetically unchanged [4, 5]. Internally bonded NSM reinforcement also allows visual inspection of the surface of the concrete to monitor the existing cracks while laminates hide these vital signs. In addition, a direct comparison showed that flexural strengthening using internally bonded reinforcement achieved higher ultimate loads than strengthening using externally bonded reinforcement with the same axial stiffness [6]. II. EXPERIMENTAL PROGRAM Numerous variables affect the behavior of shear strengthened reinforced concrete beams. This study is limited to investigating some of the more significant factors: (1) flexural and shear strengthening prismatic beam by using NSM technique and (2) flexural and shear strengthening prismatic beam by using NSM CFRP bars technique with roots inside concrete. Four prismatic concrete beams were cast and tested. Two p-beam (A1, A2) were strengthened for shear and flexural using NSM reinforcement. Last two p- beams (B1 and B2) also strengthened for shear and flexural with CFRP bars that have roots inside concrete. Hence, four results are reported. The following sections give details of the p-beam specimens as shown in Fig. 1, their instrumentation, testing procedure and results. Fig. 1. P-beam scheme. A. Material Properties 1) Properties of concrete A local ready-mix company supplied the concrete, and the target compressive strength was 30 MPa. The design slump Using CFRP NSM Technique with Roots Planted in Concrete to Strength of Prism Beam for Shear Douread R. Hassen, Abdul Aziz Abdul Samad, Noridah Binti Mohamad, Alyaa A. Azeez, and Ali Naji Attiyah International Journal of Engineering and Technology, Vol. 10, No. 3, June 2018 239 DOI: 10.7763/IJET.2018.V10.1066