EFFICIENCY ANALYSIS OF CEMENT LEVEL ON “FLEXURAL STRENGTH” (FS 45Kg/Cm2) ON CONCRETE ROAD PAVEMENT USING LINEAR REGRESSION METHOD

Putra, Prastya Ramadiasri (2021) EFFICIENCY ANALYSIS OF CEMENT LEVEL ON “FLEXURAL STRENGTH” (FS 45Kg/Cm2) ON CONCRETE ROAD PAVEMENT USING LINEAR REGRESSION METHOD. Other thesis, Universitas Darul Ulum.

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Abstract

In the work of concrete pavement structures, the contractor is required to meet the requirements of the concrete structure specifications according to the work contract that will be running. These specifications include Flexural Strength (FS), where FS is the flexural strength of concrete to accept the load of vehicles running on it. Resulted from the value of the tensile stress of the bending moment divided by the moment of resisting the cross section of the test beam, unit kg/cm2. But on the other hand, the manufacture of concrete mixtures so far refers to the compressive strength, because in the design of concrete there is no calculation that directly refers to the desired FS. The cement content of the job mix design and the results of the flexural strength of the FS 45 concrete using the composition of the concrete material from the job mix design used as data variables to study the effect of cement content on the flexural strength of FS 45 concrete. The analysis used to determine the effect of each variable used a simple linear regression analysis technique. To get the deviation value of the semen content, descriptive statistical analysis was used. The dependent variable is the result of the FS 45 trial concrete flexural test, and the independent variable is the cement content of the job mix design used by 2 concrete producing factories. From the two analyzes, it was found that the regression equation and the level of deviation of the cement content to the flexural strength of the trial concrete FS 45 were used as the basis for calculating the K quality concrete plan which was supposed to obtain the flexural strength of the FS 45 concrete. and the independent variable was the cement content of the job mix design used. by 2 concrete producing factories. From the two analyzes, it is found that the regression equation and the level of deviation of the cement content to the flexural strength of trial concrete FS 45 are used as the basis for calculating the plan for quality K concrete which is supposed to get the flexural strength of concrete FS 45. Then using Unit Price Analysis compared to the price of concrete work that must be done. paid based on the calculation of the cement content that must be paid if it is based on an existing job mix design. From the results of the analysis, it was concluded that the cement content had an effect on the flexural strength of FS 45 concrete, the average value of the deviation level of FS 45 on concrete pavements in Mojokerto Regency in 2019 and 2020 was 6.175%. The cost efficiency level of cement content according to Unit Price Analysis is 11.88% per cubic meter of concrete.
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Item Type: Thesis (Other)
Uncontrolled Keywords: efficiency, flexural strength, linear regression, deviation, cement content
Subjects: H Social Sciences > HG Finance
H Social Sciences > HJ Public Finance
University Structure > Fakultas Teknik > Teknik Sipil
University Structure > Fakultas Teknik > Teknik Sipil
Divisions: Fakultas Teknik > Teknik Sipil
Depositing User: Yusuf Salbiyah
Date Deposited: 25 Oct 2021 00:59
Last Modified: 25 Oct 2021 00:59
URI: http://repository.undar.ac.id/id/eprint/1768

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