Civil Engineering Project: Mineral Admixtures in Concrete Development

This research project proposal investigates the use of mineral admixtures in developing high-performance concrete. The introduction highlights the advantages of high-performance concrete, including increased strength, durability, and workability, while also discussing the benefits of mineral admixtures as alternatives to organic and chemical admixtures. The problem statement addresses the cost and environmental concerns associated with traditional admixtures, while the justification emphasizes the economic and environmental benefits of using mineral admixtures. The research objectives aim to determine the effectiveness of mineral admixtures in enhancing high performance in concrete, specifically focusing on workability through slump tests, compressive strength after 7, 14, and 28 days, and tensile strength at 28 days. The research hypothesis suggests that mineral admixtures will improve both compressive and tensile strengths, as well as enhance the flow ability of fresh concrete. The project includes references to relevant literature on mineral admixtures and concrete technology. The proposal outlines the scope and goals of the research, providing a framework for a comprehensive investigation into the application of mineral admixtures in concrete construction.

INVESTIGATION OF THE USE OF MINERAL ADMIXTURES IN DEVELOPING HIGH
PERFORMANCE CONCRETE
NAME
COLLEGE NUMBER
A Research Project Proposal submitted in Partial Fulfillment of the Requirements for the Award
of the Diploma/Degree of ………………in Civil Engineering.
Department of Civil and Constriction Engineering
Institution (TURKEY).

Contents
CHAPTER 1: INTRODUCTION........................................................................................................................3
Problem statement...................................................................................................................................4
Justification.............................................................................................................................................5
Research objectives.................................................................................................................................5
General objective.....................................................................................................................................5
Specific objectives...................................................................................................................................5
Research hypothesis................................................................................................................................5
References...............................................................................................................................................6

CHAPTER 1: INTRODUCTION
High-performance concrete consists of the same components as standard concrete. The use
of certain mineral and chemical compounds such as silica smoke and super plasticizer increases
strength, durability and workability to a very elevated degree ("Effects of mineral admixtures on
the workability of fresh concrete", 2016).
High performance concrete can be proposed to give upgraded execution highlights to a
predetermined arrangement of loadings, use and introduction conditions that are good with value,
administration life and solidness particulars. High performance cement doesn't include novel
segments or exceptional equipment with the exception of careful design and assembling (Nawy,
2013).
Mineral admixtures, otherwise called ' Supplementary Cementing Materials ' are ordinarily
utilized when one of a kind exhibition is required: increment in quality, decline in water cement
ratio, impermeability, and low hydration heat ("Effects of mineral admixtures on hydration of
Portland cement", 2016), upgraded sturdiness, redress of holes in total degree (as fillers), and so
on. Cost and power investment funds result: the substitution of bond adds to cost reserve funds;
the power expected to process these items is likewise a lot littler than concrete. Ecological
damage and contamination is limited by the utilization of these results – around 6-7% of all out
CO2 outflows from cement fabricating (Tokyay, 2016).
From the preceding discussion, mineral admixtures appears a suitable alternative and
methodology for high performance concrete, this is based on the relevant compositions that
constitute mineral admixtures such as silica content, its pozzolanic and cementitious properties
etc. it can therefore be deduced that use of mineral admixtures in concrete would impart high
performance in concrete in properties such as compressive strength, tensile strength as well as
effects on slump.
Typical compositions of mineral admixtures is shown in figure 1.
Figure 1. Typical compositi ons in mineral admixtures (Retrieved from
htt p://www.theconcreteportal.com/admix_min.html ).

When such compositions is presented in a C-S-A ternary diagram, the composition is
presented as in figure 2.
Figure 2: Compositi on of cement and mineral admixtures (Retrieved from
htt p://www.theconcreteportal.com/admix_min.html ).
Mineral admixtures a can be broadly classified into the following categories:
 Highly Pozzolannic
 Normally pozzolannic
 Cementitious
 Pozzolannic and cementitious
Problem statement
Organic admixtures are expensive and less effective while chemical admixtures results in
environmental degradation through pollution.
Justification
The use of mineral admixtures for high performance concrete reduces environmental
degradations as well as produces economical and effective alternative in producing high
performance concrete.
Research objectives
General objective
To determine the effectiveness of mineral admixtures in enhancing high performance in
concrete.
Specific objectives
To determine the workability of fresh concrete by performing slump test

To determine the compressive strength of hardened concrete after 7, 14, and 28 days of
cure.
To determine the tensile strength of concrete at 28 days of cure.
Research hypothesis
The use of mineral admixtures in the production of concrete imparts high performance in
terms of compressive and tensile strengths of hardened concrete as well as enhances flow ability
of fresh concrete.
References
Effects of mineral admixtures on hydration of portland cement. (2016). Cement and Concrete
Mineral Admixtures, 49–78. doi: 10.1201/b20093-9
Effects of mineral admixtures on the workability of fresh concrete. (2016). Cement and Concrete
Mineral Admixtures, 79–108. doi: 10.1201/b20093-10
Nawy, E. G. (2013). Fundamentals of high-performance concrete (2nd ed.). New York: John
Wiley.
Tokyay, M. (2016). Cement and Concrete Mineral Admixtures. doi: 10.1201/b20093