Self-healing concrete

Masters level

Self-Healing Concrete
Purba Choudhury and Sarah Guthrie
• Concrete is considered as the best material for the construction process of the building and
large civil construction.
• However, due to environment, natural condition and constituents, cracks can develop which
can create impact on the concrete structure.
• In order to prevent the Concrete self-healing structure is developed so that it can repair itself
and develop strength as well as longevity in the structure.
• Here, description of the self healing concrete is mentioned and its importance, application
areas are highlighted.
• Such concept are beneficial for the UK and US civil construction where reconstruction is
preferred which causes increase in CO2 and resources utilization. Moreover, they spend
around £40 Billion for the construction process (Abbas, Mehdi and Saleem, 2016).
Background
• To study the importance of self healing concrete.
• To understand the mechanism of self-healing concrete.
• To analyse the applications of self healing concrete in future of civil
engineering.
• To recommend ways by which these methods can become cost-effective and
sustainable in future
Objectives
• Data collection methods: Secondary source
• Research Approach: Inductive type where finding from the general to the specific topic.
• Research Designing: Descriptive research design is used where main focus is given on
the self-healing concrete, its effectiveness, application and sustainability development
through it.
• Research Analysis: Qualitative exploratory
•It is the best and cost effective methods were only initial investment is required.
•There are various advantages of using the self healing concrete in the civil engineering and
other areas.
•Countries like UK and USA must use it so that they can prevent their losses and wrong
investment.
Results and Discussion
ConclusionConclusion
REFERENCES
Methodology
•Abbas, S., Mehdi, M. L. and Saleem, M. A., 2016. Ultra-high-performance concrete: Mechanical performance, durability, sustainability and implementation challenges. International Journal of Concrete Structures and
Materials.10(3). pp.271-295.
Aims
"To understand the importance of self-healing concrete and its applications in future of civil
engineering".
Microscopic image of the self-healing process of the pre cracked control.
A: Control Specimen before and after its application.
B: Bacteria specimen before and after applying to the cracks.
Compressive Part
Compressive strength of conventional Concrete (N/mm2)
Number of Days Compressive strength at first
Crack (mm)
Ultimate Compressive strength
(N/mm2)
3 Days 4.32 20.22
7 Days 6.15 23.44
14 Days 5.77 27.15
28 Days 7.54 30.51
Compressive strength of self healing biological Concrete (N/mm2)
Number of Days Compressive strength at first
Crack (mm)
Ultimate Compressive strength
(N/mm2)
3 Days 6.75 29.48
7 Days 6.39 24.47
14 Days 6.12 27.88
28 Days 7.85 32.02