Data Analysis

Alvarez, Ereen Jenicka B.Amoroso, JenineBanaban, Carlo

Evaluation of Jute Fiber as Concrete Additive and ReinforcementIntroductionConcrete is the most widely used construction material in this modern period It has a very high compressive strength but has a very low tensile strength fiber reinforcement was introduced to improve the performance of concrete Jute is one of the most affordablenatural fibersand is second only tocottonin amount produced Chapter 1 BackgroundProblem StatementThe low tensile strength has been a disadvantage of concrete since this property of concrete limits the scope and effect of its application Fiber reinforcement is encouraged to enhance its properties but the use of carbon and steel fiber reinforcement is too expensive Chapter 1 BackgroundObjectives Main Objective:The main objective of this research project is to evaluate the jute fiber as a conrete additive and reinforcement.Sub-main Objectives:To study the importance of fiber-reinforced concrete in the field of civil engineeringTo determine the properties of jute and how it acts as a reinforcement in concrete. To determine the advantages and disadvantages of jute as a fiber reinforcement in concrete Chapter 1 BackgroundConceptual Framework

Chapter 3 Research MethodologyResearch DesignBy Experimentation and ResearchObjectives are centered on the evaluation of jute fiber as concrete additive.7th and 14th day strength tests.Chapter 3 Research MethodologyCollection of DataPrimary DataSecondary DataExperimentation using Mapuas Universal Testing Machine

Review of Related LiteratureChapter 3 Research MethodologyProperties of Jute FiberPhysicalHigh tenacity (3-4gm/den)Low elongation (1.7% break)Specific gravity (1.5)Moisture regain (13.75%)Dimensional Stability (Good)Low thermal conductivity

ChemicalEasily damaged by hot dilute and concentrated cold acidsDamaged by strong alkaliChapter 4 Data AnalysisProcedureDesign concrete mix using ACI Method.With required compressive strength of 30Mpa,Computed values for water, cement, gravel, and sand are:

Cement2.65kgSand4.95kgGravel4.29kgWater1.28kgChapter 4 Data AnalysisProcedureMix the water, sand, cement, gravel and jute fiber properly.Put the concrete mix inside the cylinder mold.

Chapter 4 Data AnalysisProcedureWait 3 days for concrete mix to harden, remove from mold then place it in the water drumTest the 7th and 4th day compressive strength using Universal Testing MachineUse the formula equation S28 = S7 + 2.5 to solve for 28th day strength

Chapter 4 Data AnalysisResults and Discussion

dayMax Stress (MPa)Break Stress(Mpa)7th18.5215.9314th18.2217.54Results and DiscussionThe addition of the jute fiber made the mixing of concrete difficult, the workability of concrete was affectedjute fiber greatly absorbs the water in the concrete mixture thus, the mixture clumps up and this prevents the uniform grain formation of the concretethe Max stress for the 7th day and 14th day test are close to each other with values of 18.52 and 18.22 Mpa, respectivelyFor Break stress for the 7th day and 28th day test, there is a more noticeable change from 15.93 Mpa to 17.54 MpaOur computed 28th day strength was 29.27 Mpa compared to the 30 Mpa required

Chapter 4 Data AnalysisFactors Affecting our Results:errors in measuring the amount of ingredientsErrors in mixing techniqueVarying temperature of lab environmentChapter 4 Data AnalysisConclusionThe researchers therefore conclude that the Jute Fiber is not an effective Concrete Reinforcement.

RecommendationTest the tensile strengthMake sure that the computation and mixture of the ingredients are right.Use the 28th day strength

Chapter 5