الفهرس 
Chapter (1) : IntroductionOnly 14 pages are availabe for public view
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Abstract
This thesis was conducted to evaluate the shrinkage behavior of
Self-healing concrete mixtures. As cement content of self-healing
concrete is higher compared to normal concrete, final shrinkage is
higher and the resistance against the evaluation of induced cracks is
lower. The main parameters taken into consideration were Bacteria
type, nutrient type, different ratios of bacteria to cement weight and
curing methods (air, urea and water). Three types of bacteria are
used, bacillus sphericus, bacillus megatruim and bacillus pasturii.
Time dependent behavior of self-healing was investigated in terms
of its mechanical properties (compressive strength, splitting tensile
strength, flexural strength) and time–dependent deformation. Timedependent
deformations are expressed in terms of plastic shrinkage
and setting time. Fresh properties of Self-healing concrete are
investigated (plastic shrinkage) . The maximum plastic shrinkage at
2 hours for pasturii type with bacterial cement ratio (0.5%) was with
the nutrient type format and with bacterial cement ratio (0.25%) was
with nutrient type lactate. The minimum plastic shrinkage at 2hours
for (0.25%) bacterial cement ratio was for sphericus with type of
nutrient format decreased by 3.08%more than the control mix. The
best dry shrinkage behavior was for the mix with megatruim
bacterial type, lactate nutrient type and urea type of curing with
bacterial cement ratio 0.5%. The best type of curing for dry
shrinkage was urea. Sphericus type of bacterial concrete mixes has
the best compressive strength specially the acetate type of nutrient
and the urea type of curing . The best dry shrinkage behavior was for
the mix with megatruim bacterial type, formate nutrient type and
urea type of curing with bacterial cement ratio 0.25%.