Wednesday, December 4, 2019

Timber Waste As Cement Replacement Material -Myassignmenthelp.Com

Question: Discuss About The Timber Waste As Cement Replacement Material? Answer: Introduction: This experiment has performed in order to obtain bending strength of timber. In order to find the bending strength of timber beam through experiment, assume that there were no shear stress induce through external load. The bending strength of any metal or materials depends on the material properties, microstructure of material and external applied over the specimen. The bending strength of timber also describe as the capacity of material with induce first crack over the surface of material or before yielding occur. The characteristics of the timber and suitability for specific application is depends on the flexural strength in real life situation. The experiment important for the selection of timber for different construction require for safe operation. Aim of this experiment is to obtain flexural strength of timber with applied point load at the span of timber beam. The external load applied in negative Y direction over the span of beam until first crack have not appear. MGP 10 grade timber have used for this experiment. Average value of the failure loads of beam obtain is around 9.264 N. Apparatus There are two rectangular beam with same grade have used for the experiment. The dimension of both beams are different. Flexural Beam test machine: This is standard machine used for testing bending strength of material, especially timber strength test have perform. Computer Data acquires: The timber experiment results are plotted in computer data acquires system. For this case, the Load V/s time chart is plotted in this device. Load Cells: This is standard element used for applied external force, usually used for research and experiment purpose. For this experiment, it is used for external applied point load at the mid span of the timber beam. Assumptions and Constrains No shear load present or consider shear stress induce equal to zero. Neglect environment and human error for the experiment. Use safety instrument and follow safety procedure for the experiment. Procedure Timber beam is used in order to perform bending strength test. Here, using two timber beam with same grade but different dimension. There are two rectangular beam which dimensions are (1) width: 35 mm, Height: 70 mm and length: 900 mm (2) width: 45 mm, height: 70 mm and length: 900 mm Place the test specimen on the strength testing machine with the require support at the end of beam. The ends support can change as requirement, it could be roller, fixed etc. but for this case both ends of beam are fixed. Place the beam such that there are no cause to induce error through test. Place load cell over the mid-span of timber beam and connect the testing machine with computer Data acquisition system for note down behaviour of timber beam while performing experiment. Start applied load over the timber beam. Keep increase load until the first crack have not appear at the timber bar. Asses the result plot on the display of computer acquisition system. Repeat entire procedure from starting to end for second bar. Obtain result same fashion as discuss earlier. Conclude result and discussion. All Dimensions are in mm and load in N. Obtain Neutral axis, Bending stress of both Beam are following: Obtaining characteristic bending stress for both beam: Result Discussion: The experiment perform for the timber beam with two different specimen. The failure load obtained of beam 35 x 70 x 900 mm is 4497 N, whereas the failure load obtained of the beam 45 x 70 x 900mm is 7901 N. both results obtained from the experiment procedure. Any design can perform with three different technique whereas theoretical analysis, experimental analysis and software solution. If any of the two solution match with each other, then it can approval for final design. In this case the experiment results of stress induce due to external applied load and theoretical result are quite similar to each other. In face both are same. So it is acceptable experiment for real life problem point of view. Conclusion The experiment perform in order to obtain result of failure load which provide strength of timber beam. But there are noticeable variation in stress induce at different cross section of timber specimen, it was 3404 N. That indicate the cross section are play important role for the strength of timber. Also MGP10 timber beam is suitable for the construction application. Recommendation: For this case, the cross section area consider standard and uniform throughout the end of material but it can be tested for different cross section for asses the suitability of material and timber beam. This case, both timber are used same grade, we can further tested for different grades also. Both ends of the timber have zero degree of freedom, we can place roller and prismatic joint also and perform experiment. The further test can perform with considering real-life problem and obtain results which are more helpful for useful application of this experiment. References https://www.cabdirect.org/cabdirect/abstract/19950602177 https://www.cabdirect.org/cabdirect/abstract/19810673206 https://www.cabdirect.org/cabdirect/abstract/19810673206 Elinwa, A., Mahmood, Y. (2018). Ash from timber waste as cement replacement material. Retrieved 20 January 2018, from Gutkowski, R., Brown, K., Shigidi, A., Natterer, J. (2018). Laboratory tests of composite woodconcrete beams. Retrieved 20 January 2018, from Radford, D., Van Goethem, D., Gutkowski, R., Peterson, M. (2018). Composite repair of timber structures. Retrieved 20 January 2018, from Tomasi, R., Crosatti, A., Piazza, M. (2018). Theoretical and experimental analysis of timber-to-timber joints connected with inclined screws. Retrieved 20 January 2018, from

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