Ulog #Day1 - Helping a Friend in His Fulfilment of the Requirements for the award of Bachelor of Engineering (B.eng) Degree in Civil Engineering

dtwo (54)in #ulog • 6 years ago

Helping someone to reach the place of success which they aspire gives me a lot of joy in my heart.

This is my first post into #ulog which was inspired by a man loved by all and accepted with love @surpassinggoogle.I am sure that God is elated with you for your good works.

All my time today was dedicated to helping a friend in his final year project. We casted concrete cubes into moulds of sizes (150 × 150 × 150)mm and (100 × 100 × 100)mm that were made of woods and a plastic cylindrical pipe of (300 × 150)mm. Each of which was meant for carrying out test for the strength properties and durability properties of the hardened concrete after they have been cured inside clean water for 90days.

We casted a concrete composed of one inch and three-quarter inch of granite which serve as the control mix and then we replaced three-quarter inch and one inch of the granite at a percentage of 10, 20, 30 with recycled waste glass broken into sizes which are three-quarter inch and one inch respectively.

Our project supervisor at work

Our main aim is to check or determine the strength properties of concrete when the coarse aggregate which is granite at different replacement level of granite with waste glass at 0%, 10%, 20% and 30% and curing days of 7days, 14days, 28days, 56days and 90days respectively. We also do the slump test using slump cone for each of the replacements.

We are all aware of the fact that numerous waste materials are generated from manufacturing processes, service industries and municipal solid wastes. This increasing awareness about the environment has tremendously contributed to the concerns related with disposal of the generated wastes. Solid waste management is one of the major environmental concerns in the world. With the scarcity of space for landfilling and due to its ever increasing cost, waste utilization has become an attractive alternative to disposal.

The use of recycled glass powder in concrete not only makes it economical, but also helps in reducing disposal problems in the environment. Recycling of wastes is considered the best environmental option for solving the problems of waste disposal. This project study overcomes the issue of the glass waste that is generated from construction and demolition activity. In order to reduce the product of glass waste, it has been suggested to reuse recycled glass waste powder to substitute a percentage of the coarse aggregate.

It was a very hectic day for us, however it was an interesting experience because i have never done something of such before. I will be giving you guys update as we go remove the concrete cubes from the mold so that we can submerge them inside water to start the counting of the 90days curing. I should do my own casting in two days time and i will give you guys update on that too as i will be replacing cement and fine aggregate in ordinary portland cement mortar and concrete by recycled glass powder respectively. Almost same thing with mine.We have a total of 32 concrete cubes that were casted and it actually took us about 6hours to achieve that.

I will also like to use this great opportunity to ask for your financial assistance for my final year project as an undergraduate of Civil Engineering In Federal University Oye-Ekiti, Ekiti State, Nigeria.

ESTIMATED COST IMPLICATION

This is calculated in Nigerian Naira and then converted to steem dollars of which the equivalent in sbd is approximately 90sbd at present exchange of 1sbd to #950 of which I have gotten about 20sbd and have about 70sbd more to go.

Any support will be much appreciated Sir/Ma.

Thanks

MATERIALS NEEDED

Based on my mix design ratio proportion of 1:1:2 for concrete and 1:9 for mortar, I will need the following: I will be casting 60 cubes mould of concrete and 60 cubes mould of mortar

• 3 bags of cement = 3 x 2500 = #7,500

• 0.203 tonnes of coarse aggregate = 3000 x 0.203 = #600

• I have gotten fine aggregate for free from an on-going building project on campus.

• Waste glass: I have gotten enough from bars and dumpsites and started grinding into powder

MOULD FOR CONCRETE CUBES AND MORTAR CUBES

I would need three different mould sizes of 150x150x150mm wooden mould, 100x100x100mm wooden moulds and 300x150mm circular pipes.

• 150x150x150mm wooden moulds: I would need 40 of this but I am going to make do with 20 since I am not casting at once. = 20 x 500 = #10,000

• 100x100x100mm wooden moulds: I would need 40 of this also but I am going to make do with 20 = 20 x 500 = #10,000

• 300x150mm circular pipes: : I would need 4 full length of this since it cannot be re-used = 4 x 2100 = #8,400

TESTS TO BE CARRIED OUT

• Chemical analysis of Sand, Cement and recycled glass powder: I am going to be doing my chemical analysis on 9 parameters which includes; silica, alumina, iron oxide, calcium oxide, magnesium oxide, sodium oxide, potassium oxide, sulfur trioxide and loss on ignition. Each of which is #500 each except loss on ignition which is #1,000 = (500 x 8) + 1000 = 5000 x 3 = #15,000

• Fresh state properties: The estimated cost for properties such as setting times, consistency, workability, air content and shear strength = 2000 x 5 = #10,000

• Hardening properties: Cost of conducting test for hardening properties such as density, compressive strength, tensile strength, modulus of rupture and modulus of elasticity is not known yet but I think of budgeting maybe #10,000 for it.

• Durability properties: The cost of conducting test for durability properties such as water absorption, shrinkage properties, chloride resistance and sulphate resistanceis not known as well but I will budget about #8,000 for it.

• Physical properties: physical properties such as bulk density, real density, and modulus of fineness would be done in the school laboratory since the school have the equipments needed for its determination.

Transportation + Miscellaneous = #5,000

ESTIMATED COST IMPLICATION = #84,500 ( A total sum of eighty four thousand, five hundred Naira only)

Just as i have stated in my previous post the following ;

PROJECT TOPIC

Strength properties of mortar and concrete using waste glass as partial replacement for cement and fine aggregate.

ABSTRACT

The glass is widely used and one of the least recycled material in country like Nigeria. Properties of hardened mortar and concrete like compressive strength and workability will be determined for different mix combinations of materials and these values will be compared with the corresponding values of conventional mortar and concrete.

The present investigation has been aimed at to bring awareness amongst the practicing civil engineers regarding advantages of these new mortar and concrete mixes in terms of strength, durability, workability and economy.

PROBLEM STATEMENT

Numerous waste materials are generated from manufacturing processes, service industries and municipal solid wastes. The increasing awareness about the environment has tremendously contributed to the concerns related with disposal of the generated wastes.

Solid waste management is one of the major environmental concerns in the world. With the scarcity of space for landfilling and due to its ever increasing cost, waste utilization has become an attractive alternative to disposal.

AIM AND OBJECTIVES OF PROJECT

AIM OF PROJECT: The main aim of the project is to determine the strength properties (such as compressive strength, tensile strength, workability etc.) of mortar and concrete using waste glass powder as partial replacement for cement and fine aggregate respectively.

OBJECTIVES OF PROJECT: The main objective of this research is to study the effect of waste glass powder on the properties of mortar and concrete mixes as a partial replacement of cement and fine aggregate respectively. Other objectives include:

• To investigate the applicability of recycled glass powder in concrete mixture and mortar mixture.

• To examine the mechanical properties of the concrete with recycled glass as replacement of fine aggregate in concrete.

• To examine the mechanical properties of the mortar with recycled glass powder as replacement of cement in mortar.

JUSTIFICATION

The use of recycled glass powder in concrete and mortar not only makes it economical, but also helps in reducing disposal problems in the environment. Recycling of wastes is considered the best environmental option for solving the problems of waste disposal.

This project study overcomes the issue of the glass waste that is generated from construction and demolition activity. In order to reduce the product of glass waste, it has been suggested to reuse recycled glass waste powder to substitute a percentage of the cement and fine aggregate respectively.