ConcreteEnginee's profile picture. Ready Mix Concrete Concrete   

QUALITY CONCRETE
DELIVERED ON TIME
MADE TO SPECIFICATION.

Engineers passionate about concrete and helps you win projects.

Concrete Engineers Malaysia

@ConcreteEnginee

Ready Mix Concrete Concrete QUALITY CONCRETE DELIVERED ON TIME MADE TO SPECIFICATION. Engineers passionate about concrete and helps you win projects.

MASS CONCRETE FOR DAMS Temperature control is paramount. Proportioning aims at: -Low cost -Low temp rise -Strength durability impermeability Challenge: cracks from tensile stresses due to heat Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. MASS CONCRETE FOR DAMS
Temperature control is paramount.
Proportioning aims at:
-Low cost
-Low temp rise
-Strength durability impermeability 
Challenge: cracks from tensile stresses
due to heat

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology

WHAT TO CHECK BEFORE CONCRETING? Many asked. Approved concrete mix design CEMENT matching mix design AGGREGATES matching mix design and free of contaminants ADMIXTURES matching mix design etc Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. WHAT TO CHECK BEFORE CONCRETING?
Many asked.
Approved concrete mix design
CEMENT matching mix design 
AGGREGATES matching mix design and free of contaminants
ADMIXTURES matching mix design etc

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

AGGREGATES FOR QUALITY CONCRETE Effect of Aggregates on Concrete 60-80% of mix; gives strength,bulk Select: durability, strength, workability Clean, hard, strong particles free of chemicals Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. AGGREGATES FOR QUALITY CONCRETE
Effect of Aggregates on Concrete

60-80% of mix; gives strength,bulk
Select: durability, strength, workability
Clean, hard, strong particles free of chemicals

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

FLY ASH CONCRETE BRINGS SUBSTANTIAL SAVINGS in cement, overall construction cost. Strength: greater than OPC 20-30% replacement-most optimal strength results; more air entrained admixture Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. FLY ASH CONCRETE BRINGS SUBSTANTIAL SAVINGS
in cement, overall construction cost.

Strength: greater than OPC

20-30% replacement-most optimal strength results; more air entrained admixture

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

LOW HEAT CEMENT USES: MASS CONCRETING WORKS: dams, foundations, wind turbine plinths ADVANTAGES 1. MINIMISE THERMAL CRACKING 2. IMPROVED DURABILITY 3. INCREASED WORKABILITY, PUMPABILITY Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. LOW HEAT CEMENT
USES: MASS CONCRETING WORKS: dams, foundations, wind turbine plinths

ADVANTAGES
1. MINIMISE THERMAL CRACKING 
2. IMPROVED DURABILITY
3. INCREASED WORKABILITY, PUMPABILITY 

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology

WHERE DO WE USE HIGH PERFORMANCE CONCRETE? BRIDGES Girders span longer-higher load HIGH RISE STRUCTURES Reduce dead load, deflection, vibration, maint HIGHWAY PAVEMENTS Early strength gain Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. WHERE DO WE USE HIGH PERFORMANCE CONCRETE?

BRIDGES
Girders span longer-higher load 

HIGH RISE STRUCTURES
Reduce dead load, deflection, vibration, maint

HIGHWAY PAVEMENTS
Early strength gain 

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

WHAT IS SO SPECIAL ABOUT HIGH PERFORMANCE CONCRETE? HPC has better performance Basic features: 1 STRENGTH < 50MPa Normal (NSC) ~50Mpa High (HSC) 2 DUCTILITY 3 DURABILITY Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. WHAT IS SO SPECIAL ABOUT HIGH PERFORMANCE CONCRETE?

HPC has better performance 
Basic features: 
1 STRENGTH
     &amp;lt; 50MPa Normal (NSC)
     ~50Mpa High (HSC) 
2 DUCTILITY
3 DURABILITY

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

MATERIALS USED IN HIGH-PERFORMANCE CONCRETE CEMENT Cement type not only on mortar-cube;28-56-91days too AGGREGATES Size, shape, surface texture, mineralogy ADMIXTURES PFA, silica fume, slag Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. MATERIALS USED IN HIGH-PERFORMANCE CONCRETE

CEMENT
Cement type not only on mortar-cube;28-56-91days too 

AGGREGATES
Size, shape, surface texture, mineralogy

ADMIXTURES
PFA, silica fume, slag

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

HOW MANY TYPES OF HIGH-PERFORMANCE CONCRETE? Based on char strength: a)   ORDINARY: 10-20MPa. b)   NORMAL: 25-55MPa. c)   HPC: 60-100MPa. d)   VERY HPC: 100-150MPa. e)   EXCEPTIONAL: >150MPa. Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. HOW MANY TYPES OF HIGH-PERFORMANCE CONCRETE?

Based on char strength:
a)   ORDINARY: 10-20MPa.
b)   NORMAL: 25-55MPa.
c)   HPC: 60-100MPa.
d)   VERY HPC: 100-150MPa.
e)   EXCEPTIONAL: &amp;gt;150MPa.

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

WHY USE HIGH PERFORMANCE CONCRETE? Developed to meet new challenging requirements: new structures-technologies SHRP’s requirements: 4 hours > 17.5Mpa 24 hours >35Mpa 28 days >70Mpa W/C ≤0.35 Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. WHY USE HIGH PERFORMANCE CONCRETE?
Developed to meet new challenging requirements: new structures-technologies

SHRP’s requirements:
4 hours &amp;gt; 17.5Mpa
24 hours &amp;gt;35Mpa
28 days &amp;gt;70Mpa
W/C ≤0.35

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

WHERE IS HIGH PERFORMANCE CONCRETE USED? Widely used in Civil Engineering: tunnels, bridges, pavements, high rise buildings because of strength, durability, and high modulus of elasticity. Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. WHERE IS HIGH PERFORMANCE CONCRETE USED? 

Widely used in Civil Engineering: tunnels, bridges, pavements, high rise buildings because of strength, durability, and high modulus of elasticity.

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

NEED ALL THESE CONCRETE QUALITIES? -High Workability, Strength, Modulus, Density, Dimensional Stability? -Low Permeability? -Resistance To Chemical Attack? For High Performance Concrete (HPC) Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. NEED ALL THESE CONCRETE QUALITIES? 
-High Workability, Strength, Modulus,
Density, Dimensional Stability?
-Low Permeability?
-Resistance To Chemical Attack?

For High Performance Concrete (HPC)
Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

HIGH STRENGTH, HIGH FLOW ABILITY AND HIGH DURABILITY – HIGH PERFORMANCE CONCRETE HPC-widely used in large concrete constructions needing high strength, high flow ability and high durability Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. HIGH STRENGTH, HIGH FLOW ABILITY AND HIGH DURABILITY – HIGH PERFORMANCE CONCRETE

HPC-widely used in large concrete constructions needing high strength, high flow ability and high durability

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology

HIGH EARLY STRENGTH CONCRETE Strike Formwork Early Lower Cost Of Structure Smaller Support Elements Common Applications: •HIGH RISE •PRECAST When REDUCED WEIGHT or ArchItecturally SMALLER MEMBERS needed Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete

ConcreteEnginee's tweet image. HIGH EARLY STRENGTH CONCRETE 
Strike Formwork Early
Lower Cost Of Structure
Smaller Support Elements
Common Applications:
•HIGH RISE
•PRECAST
When REDUCED WEIGHT
or 
ArchItecturally SMALLER MEMBERS needed

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete

FACTORS AFFECTING CONCRETE PUMPABILITY Cementitious materials, aggregate, admixtures, & batching-mixing PFA and silica fume have positive effect Batching-mixing must be accurate and adequate Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. FACTORS AFFECTING CONCRETE PUMPABILITY
Cementitious materials, aggregate, admixtures, &amp;amp; batching-mixing

PFA and silica fume have positive effect
Batching-mixing must be accurate and adequate 

Chat:
wa.link/sl5ey0
myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology

FIBRE-REINFORCED CONCRETE SPEEDS CONSTRUCTION, REDUCES COSTS Fibre can be added at batching plant or mixer truck to enhance performance and durability. REDUCED CONSTRUCTION TIME AND LABOR COSTS Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. FIBRE-REINFORCED CONCRETE SPEEDS CONSTRUCTION, REDUCES COSTS

Fibre can be added at batching plant or mixer truck to enhance performance and durability.
REDUCED CONSTRUCTION TIME AND LABOR COSTS 

Chat:
wa.link/sl5ey0
myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology

HIGH PERFORMANCE CONCRETE High Strength+Durability High Resistance to Chemical Attack High Workability-EASE OF PLACEMENT SMALLER MEMBERS INCREASE USABLE AREA REDUCE CONCRETE VOLUME & COST Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology

ConcreteEnginee's tweet image. HIGH PERFORMANCE CONCRETE
High Strength+Durability
High Resistance to Chemical Attack
High Workability-EASE OF PLACEMENT 
SMALLER MEMBERS
INCREASE USABLE AREA
REDUCE CONCRETE VOLUME &amp;amp; COST

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology

MASS CONCRETING TEMPERATURE CONTROL Cooling aggregates, ice, water cooler… We have completed many Thermal Control Plans for various projects.  We can help you develop one Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology #concretemalaysia

ConcreteEnginee's tweet image. MASS CONCRETING TEMPERATURE CONTROL
Cooling aggregates, ice, water cooler… 
We have completed many Thermal Control Plans for various projects.  We can help you develop one
Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology #concretemalaysia

INCREASE NET FLOOR AREA (SMALLER COLUMN SIZES) LOWER CONCRETE & CONSTRUCTION COST SHORTEN CONSTRUCTION DURATION thru HIGH STRENGTH CONCRETE for High Rise Buildings - Case study Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology #concretemalaysia

ConcreteEnginee's tweet image. INCREASE NET FLOOR AREA (SMALLER COLUMN SIZES)
LOWER CONCRETE &amp;amp; CONSTRUCTION COST 
SHORTEN CONSTRUCTION DURATION
thru HIGH STRENGTH CONCRETE for High Rise
Buildings
- Case study
Chat:
wa.link/sl5ey0
myconcreteengineer.wixsite.com/malaysia
#concrete #concretetechnology #concretemalaysia

SAVE 25% CONCRETE COST Thru SELF-COMPACTING CONCRETE Cement less 50% Value Engineering HighCompaction+strength+durability+Green Taiwan Underground Rail 8.2 km 3 stations Chat: wa.link/sl5ey0 myconcreteengineer.wixsite.com/malaysia #concrete #concretetechnology #concretemalaysia

ConcreteEnginee's tweet image. SAVE 25% CONCRETE COST
Thru SELF-COMPACTING CONCRETE

Cement less 50% Value Engineering
HighCompaction+strength+durability+Green
Taiwan Underground Rail 8.2 km 3
stations

Chat:
wa.link/sl5ey0

myconcreteengineer.wixsite.com/malaysia

#concrete #concretetechnology #concretemalaysia

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