Soil - Portland Puzzolona Cement (GGBS based) Stabilized Blocks
using Rice Husk Ash and its Application as Wall.
Stabilized Blocks using Rice Husk Ash and Portland Pozzolona
Cement (FLYASH based) and its Application as Wall.
G.N.V.KAPARTHI 12011D2006Under the guidance:Dr. MAGANTI
JANARDHANA M.Tech(STRUCT).,PH.D.(IITM)1ABSTRACT The provision of
good quality housing is recognized as an important responsibility
for welfare of people in a country. A question of evolution of the
use of bricks was partly based on their estimated properties,
applied building techniques and on the characteristics of brick
production. In this investigations, the agricultural and industrial
residue rice husk ash into the Soil and Portland Pozzolona Cement
(FLYASH based) stabilized blocks are studied. However there are
undesirable properties such as loss of strength when saturated with
water, erosion due to wind and/or rain or poor dimensional
stability.
Introduction Materials: Soil, Rice Husk Ash, Portland Pozzolona
Cement (FLYASH based). Evolution of Blocks and its application as
load bearing wall will be carried out. Stress-strain behavior of a
prism made using these blocks. Also Wet Compressive Strength test
will be conducted. As there are many pozzolonic materials available
around us, among them Rice Husk Ash is one of the Pozzolonic
material.Apozzolanais a siliceous or siliceous and aluminous
material which, in itself, possesses little or no cementitious
value but which will, in finely divided form and in the presence of
water, react chemically withcalcium hydroxideat ordinary
temperature to form compounds possessing cementitious
properties.Fly ash based cement: Fly ash may be used as prime
material in blocks, paving or bricks, however on the most important
applications is PCC Pavement use a large amount of concrete and
using fly ash provide great economic benefits.
Coal fired powder plants produce fly ash proving an excellent
prime material used in blended cement, mosaic tiles and hollow
blocks among others . Fly ash has also been recently for providing
roads, and as embankment and mine fills Present StudyStabilized
Soil blocks are locally available.
Highly Reactive Rice Husk Ash is an excellent Pozzolanic
material.
About 20 million tons of Rice Husk Ash is produced annually
Worldwide.
Objectives & InvestigationsInvestigation on Potential use of
Rice Husk Ash.
Investigation on main constituent materials and block production
process.
Examine Block properties.
Examine the effect of Wind driven rain on erodability of Rice
Husk Ash.Experimental InvestigationsSoil
Portland Pozzolona Cement(Flyash based)
Rice Husk ashTests conducted on SoilLiquid Limit = Plastic Limit
= 35.72Specific Gravity = 2.27Natural Moisture Content =
0.11Particle Size Distribution = Maximum Dry Density = Optimum
Moisture content = Unconfined Compressive Strength =Tests Conducted
on Cement (FLYASH based)Fineness of cement = 0.162Specific Gravity
= 2.86Normal consistency of cement = 36%Initial setting Time =
20minsFinal setting Time = 6 hrsSoundness Test = 2mm Compressive
Strength Test.Physical Properties of Rice Husk AshChemical
Properties of Rice Husk Ash.s.NoChemical propertiesValveAs per
IS:3812-19811.Silicon Dioxide90.1%35% (min)2. Magnesium
oxide0.94%5.0% (max)3.Sodium oxide0.50%1.5% (max)4.
Sulphate0.03%2.75% (max)5. Loss on ignition1.55%12% (max)Further
Proceedings in ProjectCasting of soil blocks.
Compressive Strength test to be conducted for soil blocks.
Constructing wall panels using soil blocks.
Conducting erodability tests and load tests for wall panels.
Evaluating results.Thank You
