Self-compacting concrete (SCC) is a new concrete technology developed during last two decades and it has become very popular in the construction industry. Filling ability, Passing ability and Resistance against segregation & bleeding, are the main properties of Self-compacting concrete. The main problem in designing of SCC is the selection of appropriate ingredients. All super plasticizers and viscosity modifying admixtures (VMA) are not compatible with any kind of cement. An experimental investigation has been undertaken to produce Self-compacting mortar and Self-compacting concrete to understand cement-plasticizers or admixture compatibility problem. Further, the harden properties of SCC was improved by addition of polypropylene fibers. The common problem associated with the use of fiber in concrete is the reduction in workability. However, the flow properties for SCC can be achieved in presence of fiber using new generation plasticizers and additives.The present research also describes the manufacturing process and rheological aspects of newly developed fiber reinforced self compacting mortar

Fly ash based geopolymeric binders have potential for a wide range of high temperature applications and it is receiving more attention due to their economic and environmental advantages. This kind of Geopolymeric materials possess intrinsic fire resistance due to their rigid 3-D aluminosilicate structure. Geopolymer specimens remains dimensionally stable at high temperature and provides good compressive strength also. The percentage of Na2O and SiO2/Na2O ratio affect development of internal pore structure of Geopolymers and subsequently its performance at elevated temperature. The characterisation of internal pore structure can be made by using simple experimentation like measuring water absorption, apparent porosity and water sorptivity as well as some sophisticated mineralogical and microstructure studies like SEM, XRD, MIP etc. also. This book records a huge experimental observations and explained intricate behavioural aspects of fly ash based geopolymer exposed elevated temperature. It will help the researchers and technologists to produce high temperature resistant geopolymer for different engineering applications.

Geopolymers are currently attracting widespread attention due to their potential utilization as high performance, environmental friendly and sustainable alternative to Portland cement. The present research reports the manufacturing process and engineering properties of low calcium fly ash based geopolymer composites. Initially, the effect of geopolymer synthesizing parameters such as alkali content, silicate content, water content, sand content, curing temperature and duration of thermal curing on compressive strength have been presented for certain level of understanding regarding geopolymer manufacturing process. Further study on engineering properties of geopolymer composite revealed that %Na2O and SiO2/Na2O ratio of the geopolymer mix considerably affect workability and setting time of fresh geopolymer mix as well as physico-mechanical properties of hardened geopolymer specimens. X-ray diffracton analysis of geopolymer show formation of new crystalline phases like hydroxysodalite and herschelite, at higher alkali and silica content that influenced microstructure and engineering properties.Based on the experimental results a mix design guidelines have been proposed.