An Experimental Study on the Utilization of Waste Marble Dust Powder in Manufacturing of M20 Grade Concrete Blocks

An Experimental Study on the Utilization of Waste Marble Dust Powder in Manufacturing of M20 Grade Concrete Blocks

AN EXPERIMENTAL STUDY ON THE UTILIZATION OF WASTE MARBLE DUST POWDER IN MANUFACTURING OF M20 GRADE CONCRETE BLOCKS

AbstractMost environmental problems are mostly from wastes created from various industries. Global warming is mainly caused by the greenhouse gases mainly CO2. Marble dust powder (MPa) is a material which is growing industry that enables the concrete industry to generate financial benefits, optimize material use and construct systems that can be strong, durable and environmentally sensitive. MDP is obtained at a certain stage of mining from the original marble rock. The dumping of marble powder from the marble enterprise is one of the main reasons for the environmental problems and pollutions worldwide. The capacity utilization of marble dust powder can be an excellent advantage of the substitute in cementitious binder. For this reason, the reuse of this waste material can be targeted. Today, MDP helps in achieving economy by improving the properties of concrete and is an advanced opportunity for a concrete element to impart excessive strength by adding this MDP. In this experimental observation, the effect of marble dust powder in concrete on strength is presented. Concrete mixtures containing 0%, 5%, 10%, 15% and 20% marble dust powder were prepared to replace cement. The cubes were casted and the compressive strength and tensile strength of the different concrete mix specimens were tested. When the percentage of marble dust powder added increases the workability of the various mix specimens decreases. The use of powdered marble has other benefits such as it reduces the cost of construction, when used while mixing it with concrete for the construction of floors, whitewashing, other systems and it reduces the proportion of water-cement ratio.

Keywords – Cement, concrete, compressive strength, split tensile strength, water cement ratio, Marble dust powder.

1. INTRODUCTION

   One of the carbon dioxides emitting assets besides deforestation and burning of fossil fuels is the Cement manufacturing industry. The emission of greenhouse gases, which includes CO2, to the atmosphere creates global warming. The various greenhouse gases, CO2 contributes about 65% of world warming. the worldwide cement enterprise contributes about 7% of greenhouse CO2 emission to the earths environment. On this have a look at marble dust powder are used as an alternative binder of cement in concrete and comparing the samples with various mix proportions of cement with MDP with conventional concrete. The marble manufacturing industries produce carbon dioxide emission which is a greenhouse gas which leads to global warming. Its purity effects for its shade and appearance. A huge amount of waste is generated and leaving those at once to environment causes intense problems. Feasibility of the usage of the marble dust powder as partial alternative of cement in concrete production as is studied on this project.

2. OBJECTIVES

   To examine the properties of marble dust powder with cement and the compressive and tensile strength alongside the variation in MDP. To take a look at the outcomes of marble dust powder on the different properties of concrete. To examine the possibility to incorporate MDP as filler in concrete. To discover the most desirable percentage for substitute of cement with MDP at which maximum strength is obtained.

3. MATERIALS

   1. The ordinary Portland cement (53grade) was used. The following table represents the test conducted on cement:

      Table 1: Test on cement

      SL no	Name of test	Value
      1	Specific gravity	3.13
      2	Fineness	9%
      3	Initial setting time	29 min
      4	Final setting time	10hrs
      5	Standard consistency time	32%

   2. FA was selected with respect to IS standard.

      Table 2: Test on fine aggregate.

      Sl.no	Name of test	Value
      1	Specific gravity	2.65
      2	Water absorption	1.25%

   3. Coarse aggregate was used in the size range up to 20 mm.

      Table 3: Test on coarse aggregate

      Sl.no	Name of test	Value
      1	Specific gravity	2.65
      2	Water absorption	1.55%

   4. Drinking water is used for mixing and conditioning of concrete.

   5. Fig 1: MDP

      Marble dust power is the waste product produced in the stone industry. It is present in odourless white powered form.

      Table 4: Test on MDP

      Sl.no	Name of test	Value
      1	Specific gravity	2.63
      2	Water absorption	0.97%

4. CONCRETE MIX DESIGN

   Concrete mix design is the science of choosing the cement, sand, and aggregate to use them in order to achieve target strength in structures.

   Adopted water cement ratio is 0.5.

   Table 5: Quantities for 1m3 of M20 grade concrete.

   No.	Materials	Quantity
   1	Cement	380 kg/m3
   2	Fine aggregate	828 kg/m3
   3	Coarse aggregate	1040 kg/m3
   4	Water	190 L/m3

5. METHODOLOGY

   OPC cement of grade 53, coarse aggregate, fine aggregate and waste marble dust powder are used. The properties of them and their values obtained are

   obtained via using preferred IS methods.M20 mix design is followed. For finding the compressive strength and tensile strength different sample specimens are used. In each specimen different percentage variation for marble dust powder and cement are used. The percentage replacements of MDP with cement are 0%,5%,10%,15%, and 20. For every replacement, special pattern designation was given and are casted and positioned for curing and compressive strength, split tensile strength was determined at 7 and 28 days.

   Fig 2: Casting of Specimen.

6. RESULT AND DISCUSSION

   Compressive strength is testing using the cubes. Different percentage variation of MDP with cement specimens are casted. Casted cubes are tested in order to determine the crushing strength at 7 and 28 days by giving loading in the compressive testing machine. Values at the 7 days and 28 days are important for evaluating the quality the quality and performance of the concrete.

   Table 6: Compressive trength (7 days & 28 days)

   fig 3: Compression testing machine

   Split tensile strength is tested using compressing testing machine.Here cylinders are casted with different percentage variations of MDP with cement.It is evaluated by compressive forces given along the length of the casted concrete cylinders.Tensile strength is concretes ability to withstand the tension loads.

   Table 4: Tensile strength – 7 days & 28 Days

   Fig 4: Split tensile test

7. CONCLUSION

   It is found that the MDP gives notable results in strength and quality. So, it is used as the replacement for cement. Here the 10% substitute for the marble dust powder is confirmed that the substitution caused better compressive strength and improvement of materials associated with the durability according to the percentage replacement. The compressive strength increases 10% alternative of cement by using MDP and further adding of MDP will reduces the compressive strength. In the case of split tensile strength of concrete, the tensile strength increases initially up to 10% MDP replacement with cement and further increase in the replacement by MDP with cement leads to lower in split tensile strength value of the concrete.

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