Assessment of Destructive and Nondestructive Analysis for GGBS Based Geopolymer Concrete and Its Statistical Analysis

Abstract

Geopolymer is the alternative to current construction material trends. In this paper, an attempt is made to produce a sustainable construction composite material using geopolymer. Ground granulated blast furnace slag (GGBS)-based geopolymer concrete was prepared and tested for different alkaline to binder ratios (A/B). The effect of various temperatures on compressive strength properties was assessed. The cubes were exposed to temperature ranging from 50 to 70 °C for a duration ranging from 2 to 10 h, and the compressive strength of the specimens was analyzed for destructive and non-destructive analysis and tested for 7, 28, and 90 days. The obtained compressive strength (CS) results were analyzed employing the probability plot (PP) curve, distribution overview curve (DOC), probability density function (PDF), Weibull, survival, and hazard function curve. Maximum compressive strength was achieved for the temperature of 70 °C and an A/B of 0.45 for destructive tests and non-destructive tests with 44.6 MPa and 43.56 MPa, respectively, on 90 days of testing. The survival and hazard function curves showed incremental distribution characteristics for 28 and 90 days of testing results with a probability factor ranging from 0.8 to 1.0.

Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion

“…At temperatures of 0~50 °C, the surface tension and contact angle of water change little in concrete; therefore, the temperature has less influence on the water absorption when the water is in a liquid and flowing condition. However, the pore distribution and pore size of concrete will change with the hydrophobic admixture [ 11 , 12 , 13 ], which causes water adsorption process variation with the concentration of TIA.…”

“…At present, the improvement of the permeability of concrete is mainly achieved by improving the compactness of cement-based materials and optimizing the pore structure by reducing the water/cement ratio, and the addition of auxiliary cement-based materials or nanoparticles [ 10 , 11 , 12 , 13 ]. However, there are still some problems with these common methods, such as increasing the shrinkage of concrete, affecting workability, and making dispersion difficult in highly aggressive environments.…”

Alkali-Activated Slag Coatings for Fire Protection of OPC Concrete

“…These new hydration zeolitic compounds are durable at elevated temperatures [23]. Shilar et al [24] concluded that the hydration rate of ground granulated blast furnace slag decreases when the molarity of the alkali activator increases from 8 M to 12 M. The optimal hydration temperature was found to be 70 • C. In another study [25], the best ratio of sodium silicate solution to precursor made from metakaolin and fly ash was 0.7. In this case, the highest compressive strength reached 40.2 MPa.…”

Structure and Properties Improvement by Recipe Factors of Geopolymer Basalt Fiber Reinforced Concrete for Building Enclosing Structures

“…For example, in works [11][12][13][14], the authors developed various compositions of geopolymer concretes, where fly ash was used as an aluminosilicate component, and the strengths of the composites varied from 15 MPa to 70 MPa. In studies [15][16][17], various types of slag were used as a binder, and the strength of geopolymer composites varied from 40 MPa to 70 MPa. Also, in addition to the above types of aluminosilicate components, metakaolin, microsilica and ground waste from concrete and brick waste are used for the production of geopolymer composites [18][19][20].…”