Improving Cementitious Properties of Blended Pozzolan Based Materials for Construction of Low Cost Buildings in Mbeya Region, Tanzaniakassel university press GmbH, 28/02/2018 - 224 من الصفحات This study therefore investigated and improved cementitious properties of pozzolan blended with calcium hydroxide, gypsum and cement in order to extend its use from low strength mortars to concrete works which can be used for low to medium rise structural applications. Characterization, strength tests and durability tests were performed on pozzolan mixtures under laboratory conditions and the effects of adding gypsum to pozzolan and calcium hydroxide mixtures on the compressive strength and durability of cured concrete specimens were investigated. |
المحتوى
CHAPTER ONE | 1 |
LITERATURE REVIEW | 4 |
METHODOLOGY | 65 |
OPTIMIZATION OF BINDER COMPOSITIONS AND WB | 82 |
ANALYSIS AND EVALUATION OF RESULTS | 95 |
CONCLUSION AND OUTLOOK | 150 |
REFERENCES | 154 |
APPENDICES | 180 |
Back cover | 203 |
عبارات ومصطلحات مألوفة
56 days aggregates alkali alumina amorphous/glass ASTM binder systems binder types blended materials blended with lime blending proportions CAH phases calcite calcium hydroxide cementitious materials chemical elements composition concrete and mortar concrete specimens concrete/mortar construction crystalline cured for 56 cured paste specimens cured specimens Curing days days of curing deicing density of specimens determined Dynamic modulus equation ESEM images ettringite ettringite formation Figure fineness fly ash formation of ettringite gels gypsum hydration reaction investigate ISBN ISSN Mbeya region Metakaolin mixing mixture modulus of elasticity mortar and concrete optimum oxide Papadakis parameters porosity Portland cement pozzolan and calcium pozzolan blended pozzolanic binders pozzolanic concrete pozzolanic reaction Ramezanianpour raw pozzolanic materials react reactivity of pozzolanic sample ScienceDirect silica SiO2 SOCE specific surface area strength and durability strength of concrete strength of cured structures sulfate Tanzania temperature volcanic ash w/b ratio water-binder ratio zeolite