Ultra High Performance Concrete - Texas A&M University-Kingsville

concretecakeUrban and Civil

Nov 29, 2013 (3 years and 8 months ago)

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Ultra High Performance
Concrete

(UHPC)

Kelly Grahmann

MEEN 3344

Texas A&M University
-

Kingsville

What is UHPC


It is also known as Reactive Powder
Concrete (RPC)


It is a high strength, ductile material
formulated by combining portland cement,
silica fume, quartz flour, fine silica sand,
high
-
range water reducer, water, and steel
or organic fibers

Comparing Properties

Properties of UHPC


Compressive strengths up to 200 Mpa


Flexural Strengths up to 50 Mpa


Modulus of Elasticity 45 to 50 GPa


Ductile


strong


Durable


High bending tensile strength


Low capillary porosity (high
endurance)


High resistance to deicing salt


Greatly reduced permeability to
moisture, chlorides and chemical
attack


Increased resistance to abrasion,
erosion and corrosion


Speedy construction

Properties of Concrete


Compressive Strength 25 to 35 Mpa


Relatively Weak


Extremely Brittle


Almost no tensile strength


High thermal expansion and
contraction with temperature
fluctuations

Applications of UHCP


Scraper paths in
treatment plants


Architecture


Bridges


Narrow supports


Filigree beams


Thin or slab
-
like
components


Buttresses for high
pressures

References


http://www.tfhrc.gov/focus/nov04/01.htm


http://www.cement.org/tech/cct_con_desig
n_uhpc.asp


http://www.max
-
boegl.de/boegldip/web/ifsbinary.jsp?fsId=3
894817&disposition=inline


http://www.norchem.com/appl
-
strength.html