e need for concrete increases with rapid development in the field of infrastructure because of the increased use of cementing material of concrete. e production of concrete is unsafe to the earth. Consequently, there is a need to discover new binding material with cementing properties. Fly ash debris is wastage of thermal power plants and acquires hectares of land for the dumping reason. is paper concentrates on development of alternative binding material in the field of construction. e fly ashbased geopolymer concrete is a better option, but it needs heat curing for the polymerization. e use of lime powder in the geopolymer concrete gives better result without heat curing. e experiment depends on the characteristics of daylight curing and impact of temperature in controlled oven curing. e M30 grade geopolymer concrete plans with the addition of lime powder. e addition of lime powder is changed by 0%, 5%, 10%, 15%, 20%, and 25%. e compressive strength increases with addition of lime powder, but in the cases of 20% and 25%, the workability gets hamper. e study also deals with temperature variations when oven cured for 35°C, 40°C, 50°C, and 60°C hence assessed.

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As the tremendous use of cement for construction, the OPC production increases day by day. The cement production is held responsible for CO2 emissions, which polluted the atmosphere. Hence, it is inevitable to find an alternative material to OPC. Geopolymer concrete is a best alternative which shall be produced by the chemical action of inorganic molecules. This paper focuses on fly-ash based Geopolymer concrete with addition of lime. In the geopolymer concrete, cement is completely replaced by fly ash (P60). Sodium Hydroxide (NaOH) and Sodium Silicate (Na2SiO3) of 13 moles was initially used as an alkaline solution with Na2SiO3: NaOH ratio 2.5. Three type of lime samples is used i.e. Quick, Hydrated and Slaked with variation in lime percentiles as 5%, 10%, 15% and 20%. The sodium hydroxide of 10, 13, 16 and 19 molarity are used along with optimum lime percentage for comparative and tensile behavior study. After specified period samples are remolded and cured at natural sun shade for 24 hours. After natural curing hours, optimum rest period is taken as 7 days. Sample having size 150 X 150 X 150 mm was tested for compressive strength and split tensile strength. Slump cone test and flow table test on fresh mix sample is also performed. The temperature curing for the polymerization is not required in case of the lime added fly ash based geopolymer concrete.

The production of cement is harmful to the environment. It is important to decrease the creation of Ordinary Portland Concrete. On the opposite side, the thermal power plant expends hectares of land for the dumping of fly fiery remains which is waste material. This paper concentrates on low calcium fly ash based geopolymer concrete. In the geopolymer concrete, the diverse centralization of sodium hydroxide, for example, 8, 10, 12, 14, 16, 18, and 20 molars was utilized. The sodium silicate to sodium hydroxide proportion kept up as 2.5. The eight rate convergence of sulfuric and hydrochloric acid were utilized for the corrosive assault on fly ash based geopolymer concrete. The test perform for oven and steam cured fly ash based geopolymer concrete. The streamlined level of warming utilized for various curing techniques. After the curing, the cube kept in sulfuric and hydrochloric acidic condition for up to the half year. The acidic impact assessed at once interim of 0, 45, 90, 135, 180 days. It is watched that the sulfuric corrosive is unsafe to the fly powder based geopolymer concrete as contrast with hydrochloric corrosive. The cube sample cured for oven and steam curing. The optimized degree of heating used for different curing methods. After the curing, the cube sample were kept in sulfuric and hydrochloric acidic environment for up to the six months. The acidic effect evaluated at a time interval of 0, 45, 90, 135, 180 days. It is observed that the sulfuric acid is harmful to the fly ash based geopolymer concrete as compare to hydrochloric acid.

Cement industry plays major role for emission of greenhouse gasses. So, there is need for manufacturing of environmental friendly concrete. Geopolymer concrete helps in reduce global warming as well as fly ash disposal problem. This paper presents study the effect of types of curing, temperature, curing time and rest period. These parameters were studies like one variable parameter and other three are fixed parameter. One by one these parameter were finalize. The types of curing analyze with temperature optimization, rest period and curing time of geopolymer concrete. The type of curing like oven, accelerated, membrane, steam, wet and natural sun light (room temperature). The temperature differs like 600C, 900C, 1200C and 1500C. Once the temperature for type of curing is lock then proceed to curing time i.e. 6, 12, 18 and 24 hours. At the end temperature, type of curing and curing time finalize then optimize the rest period or testing age of concrete. The rest period differ like 1, 3, 7, 14, 21, 28, 56 days. In this study these variable are to be analyze with the help of compressive strength of geopolymer concrete.

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