BASICS OF CONCRETE SCIENCE - CHAPTER 9 pot
BASICS OF CONCRETE SCIENCE - CHAPTER 9 pot
...
Structural-heat
insulating
50 0-1 400
3. 5-1 0 0.1 7-0 .40 For enclosing structures
Structural 140 0-1 800 1 5-5 0 0.5 8-0 .4
For load-carrying
structures
173
Fig. 9. 1 Effect of bulk density of aggregate ... cellular concrete А
≈10, for non-autoclaved cellular concrete
А
≈7,5 8,5.
183
9. 5. Cellular concrete
Cellular concrete (gas concrete) has been sugge...
BASICS OF CONCRETE SCIENCE - CHAPTER 0 pdf
...
Republik ( 192 8)
6
REFERENCE
on the manuscript of book
of Doct. of Tech. Science, Prof. L. Dvorkin and
Doct. of Tech. Science O. Dvorkin
Basics of Concrete Science
By now concrete science became ... and polymer-cement concrete
8.4. Fiber reinforced concrete
8.5. Special concrete
9. Light-weight concrete
9. 1. Concrete on non-organic porous aggregates
9...
BASICS OF CONCRETE SCIENCE - CHAPTER 1 pptx
... SnO
2
BeO - - - - -
MgO - - - -
CaO ++ ++ ++ ++ ++ ++ ++
ZnO - - -
SrO ++ ++ ++ + + + +
CdO - - - - -
BaO ++ ++ ++ ++ ++ ++ ++
Note: fixed (++) and predicted (+) existence of binding ... of uniform
dist ribution of entrained-air voids in concrete
structure
Accelerator of setting time Shorten the time of setting
Ac...
BASICS OF CONCRETE SCIENCE - CHAPTER 2 docx
... index of degree equal 0,1 to 1).
46
2.2. Technological properties of concrete mixtures
Fig. 2.6. Chart of methods of determination of structural-
mechanical
properties (workability) of concrete ... frequency of vibrations.
42
Fig. 2.1. Change of viscidly-plastic properties of concrete mixture
depending on tensions:
a – change of structural viscosity; b – change o...
BASICS OF CONCRETE SCIENCE - CHAPTER 3 docx
... forming
Influence of chemical admixtures
Fig.3.10. Kinetics of change of level of
hydration of cement silicate phase:
1- without admixtures; 2- calcium nitrite-nitrate
(3%); 3- calcium nitrite-nitrate–chloride ... cement; 2- capillary pores; 3- cement hydrate gel
a
b
67
3.4. Optimization of concrete structure
Concrete structure is a cover-up of its stru...
BASICS OF CONCRETE SCIENCE - CHAPTER 4 ppsx
... ,kdd/Е
2/1
срср
−
=ν=σ
where - tensile stress; E- modulus of elasticity; - effective energy of
destruction; d
as
- average size of a crystal;
(
)
2/1
Ek
−
ν=
- coefficient of viscidity of destruction.
Strength of concrete ...
Y.Bagenov offered the formulas of concrete strength :
If C/W≥2.5
If C/W≤2.5
(
)
(4.8) ,5.0W/CАRR
c
−
=
(
)
(4 .9) ,5.0W/CRАR
c
1
+=
wh...
BASICS OF CONCRETE SCIENCE - CHAPTER 5 ppt
... influencing of size of unit,
humidity of environment and age of concrete in the moment of
loading began.
99
Fig.5.7. Effect of conditions of loading on magnitude of creep
for typical normal-weight concrete ... deformation of shrinkage.
89
On the idealized chart of
compression of cement stone it
is possible to select three basic
areas: a-b- absence of crac...
BASICS OF CONCRETE SCIENCE - CHAPTER 6 pps
... expansion.
1 09
Fig.6.2. Relationship between frost resistance
and water-cement ratio (W/C) of concrete:
1 – Air-entrained concrete;
2 - Non-air-entrained concrete
W/C
Cycles of freezing
and ... strength, rate of hardening, time
and conditions of concrete hardening.
125
Durability of concrete in the terms of influence of aggressive environment is
provided by...
BASICS OF CONCRETE SCIENCE - CHAPTER 7 pdf
... equality of volume of the concrete mix to the sum of absolute
volumes of the initial components of concrete, the second - conformity of
volume of the cement - sandy paste (mortar) to volume of voids ... depending on quantity of
the cement stone in concrete.
Fig. 7.2. Effect of quantity of the cement stone in concrete
on the value of creep:
1 – C...
BASICS OF CONCRETE SCIENCE - CHAPTER 8 pptx
... 68 93 .6
New York 198 7 72 57
Toronto 198 7 69 70
Paris 198 8 36 70
Chicago 198 9 82 78
Guangow, China 198 9 63 70
Chicago 199 0 65 84
Frankfurt 199 0 58 45
Seattle 199 0 58 133
Frankfurt 199 1 ... 8.1
Examples of high-strength concrete application
at the high-rise buildings construction
City
Year
of construction
Number of
floors
Concrete strength,
MPa
Montreal 198...
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