Strength and Setting Times of F-Type Fly Ash-Based Geopolymer Mortar International Journal of Earth Sciences and Engineering ISSN 0974-5904, Vol. 09, No. 03, June, 2016, pp. 360-365
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Mortar memiliki sifat mekanik yang cukup baik sejauh ini dalam perkembangan teknologi pembangunan konvensional. Berbagai upaya telah dilakukan dalam memanfaatkan fly ash sebagai bahan tambah guna ...
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The 28th day's compressive strength of the cement-fly-ash-mortar containing 70% cement and 30 % fly ash was 37.53N/sq.mm, which corresponded to 93.7% of the Compressive strength(40.06N/sq.mm) attained by the reference mortar which contained 100.0 % of cement. and zero percent It was inferred that fly ash can be added at 30% …
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Past evidence suggests that fly ash can be used as a partial replacement for cement in the manufacture of concrete and mortar, leading to a number of positive results including …
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Substituting fly ash for Portland cement in a concrete mixture leads to longer drying and curing times. When used in cold climates, mixtures with high levels of fly ash can also encounter issues with slow …
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Fly ash (FA) is the principal industrial waste byproduct from the burning of solid fuels. FA is a powdery solid that is constituted mostly of unburned carbon (UC), …
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The used of RH as additive in fly ash mortar has been investigated throughout this research. The overall density in whole research in range 1600 to 1820kg/m 3 that can be categories as lightweight ...
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The results showed that sodium hydroxide (NaOH) can release silica and alumina in the amorphous phase and can be used as a binder for geopolymer mortar made from straw ash, fly ash, and laterite soil without using oven heat, according to compressive strength, chemical compositions, and the geopolymerization process.
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of compressive strength of class C fly ash-based geopolymer mortar created in ambient curing condition. The main synthesis parameters such as alkali to the cementitious mass ratio varied from 30% ...
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The compressive strength test results showed that the highest compressive strength of geopolymers mortar (resistant to sulfuric acid attack) was geopolymers mortar made from fly ash with activator ...
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The use of Fly Ash and GGBFS as a binder to replace cement in geopolymer mortar has a positive impact from an environmental point of view because it can reduce the use of cement and can reduce ...
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Despite almost two decades of experience and application, low compressive strength of concrete containing FA often occurs in construction projects in Indonesia. …
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There are many papers published about the usage of fly ash in cement and concrete technology [15]. Fly ash is considered effectively as a supplementary cementitious material or replacement material with a portion of cement up to 30–40%. ... Strength properties of high-volume fly ash roller compacted and workable concrete, and …
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Indonesia is an archipelagic country with many buildings located in the coastal area. ... (the percentage of the total mass of fly ash and cement). The compressive strength of the specimens after ...
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The mortar formed from fly ash and cement replacement mixtures exhibited compressive strength similar to normal, according to the findings of compressive tests. …
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Fly ash concrete is a sustainable construction material that reduces cement consumption and CO2 emissions. This article reviews the fresh and hardened properties, durability, microstructure and case studies of fly ash concrete.
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Based on ASTM C 618, fly ash is classified as follows: -Fly ash class F. Fly ash contains silicon dioxide (SiO2), aluminium oxide (Al2O3), and iron oxide (Fe2O3), which is more 70% by mass. It is produced from burning anthracite or bituminous coal (bituminous). Fly ash that also called the F-class or low-calcium fly
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The OPC with 28-day strength of 42.5 MPa was produced by YTL Sdn Bhd and has Blaine's surface area, initial setting time, soundness (mm) and BET Surface Area (m 2 /g) of 3.2 m 2 /kg, 130 mins, 1.0 ...
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In the construction industry, especially in Indonesia, the use of mortar is very common. Mortar serves various purposes, not only for bricklaying but also for plastering walls, installing tiles, and more. ... to analyze the effects of fly ash and stone dust on mortar strength. Curing and testing methods were undertaken based on SNI 03-6825-2002 ...
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Analysis of Geopolymer Mortar Compressive Strength Based on Fly Ash and GGBFS as Patch Repair Material. Rahmi Karolina 1,2, ... Medan 20155, Sumatera Utara, Indonesia 3 Civil Engineering, Universitas Sumatera Utara, Medan 20155, Sumatera Utara, Indonesia 4 Civil Engineering Department, Faculty of Engineering, Universitas …
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This research investigates the influence of sodium hydroxide (SH) molarity on fly ash-slag-based geopolymer mortar's workability, setting time, and compressive strength. The molarity of SH ...
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Fly ash-based geopolymer concrete (FAGPC) presents a viable alternative to traditional Portland cement-based concrete for rural road construction. Unlike conventional concrete, which relies on Portland cement, FAGPC utilizes fly ash—a byproduct of coal combustion at power stations—as its primary binder. This shift results in a concrete with …
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Fly ash is considered to have met C618's requirements if the 7- or 28-day strength of a sample with 20 percent fly ash reaches 75 percent of the control strength in an ASTM C109 test. Both class C fly ash and slag have about 35 percent silica and much lower calcium oxide than portland cement.
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Karakterisasi Sifat Kimia dan Fisika Fly ash Indonesia. RC-142501. Jan 2017; ... anhydrite is more effective in increasing the early-age strength of the cement/fly ash mortars, but less effective ...
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This paper presents an observation on fly ash quality in East Jawa, Indonesia. The ash samples were collected from 16 fly ashes produced by some Indonesian power plants. The samples are majority categorized …
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The results demonstrate that the replacement of cement with fly ash in concrete is beneficial and the targeted strength of concrete will achieve with time. View Show abstract
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This article reports the results of an experimental study on mortar workability and the increasing of compressive strength of class C fly ash-based geopolymer mortar created in ambient curing ...
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This paper presents the effect of sodium silicate to NaOH ratio on the strength performance of fly ash geopolymer mortar subjected to continuous immersion in a simulated marine environment during ...
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geopolymer with different activator/fly ash ratios which were 0.25, 0.35 and 0.45. Table 2 shows the mix proportion for 1 m3 mortar using water/fly ash ratio of 0.4.The high range water reducer (HRWR) with HRWR/fly ash ratio of 0.7% was used to improve the workability. Table 2. Composition of geopolymer mortar. No. Material (kg) Activator ratio …
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