Research has been carried out on the optimization of the Use of Lahat Fly Ash as an Additive Portland Composite Cement (PCC) ... TABLE 4. Loss of Ignition (LOI) Test Results. Standard Loss of Proportion of Fly Loss of Ignition Ignition Ash (%) (%) SNI 7064:2014 (%) 6 10 14 9.65 - 9.56 9.60 LOI is the level of lost incandescent of cement or ...
Fly-ash additives are added to lubricating oils to improve oxidation resistance and prevent deposit formation, which may reduce viscosity loss at high temperatures. …
Adding 3.0 wt.% Class F fly ash (brown coal) increased the apparent viscosity, plastic viscosity, yield point and gel strength by 23%, 28%, 9% and 25%, resp. …
In this study, Afşin Elbistan C-type fly ash (FA) was used, which protects against the sulphate reaction that damages concrete. The detrimental effects of post-reaction decrease with increasing fly ash fineness. The study used 10%, 30%, and 50% weight substitutes of cement. The fly ash was ground in a ball mill for 0, 10, 20, 30, 45, …
The experiment show that drilling mud mixed with 3 % w/v concentration of fly ash is a high potential additive for enhacement the rheological properties especially in increasing of apperant ...
The four most relevant characteristics of fly ash for use in concrete are loss on ignition (LOI), fineness, chemical composition and uniformity. ... Chemical composition of fly ash relates directly to the mineral chemistry of the parent coal and any additional fuels or additives used in the combustion or post-combustion processes. The pollution ...
The findings demonstrate that the inclusion of 0.5% fly ash additive in the lubricant oil results in a significant reduction in both scratch width and weight loss of the balls.
The ANOVA was also used to test for the Blaine fineness for the Optimization of Calcareous Fly Ash-Added Cement Containing Grinding Aids and Strength-Improving Additives (Kaplan et al., 2018). The ...
Fly ash can be used in an effective way to treat domestic wastewater with simple techniques and low-cost adsorbents (Akar, 2010, Aljerf, 2018a, Aljerf, 2018b). Fly …
Lime, on the other hand, is a commercial quicklime supplied by Lafarge Calcinor, with a purity of 88% and a reactivity of t 60 = 2.37min, used as an additive to activate fly ash. The choice of this type of lime was motivated by the fact that it is used very little by researchers who prefer to work with slaked lime instead.
The findings demonstrate that the inclusion of 0.5% fly ash additive in the lubricant oil results in a significant reduction in both scratch width and weight loss of the balls. However, it should be noted that higher additive ratios may lead to increased scratch width and weight loss due to the agglomeration of the fly ash particles on the ...
Fig. 8 presents alumina extraction of coal fly ash mixed with the mixture additives containing NaOH and Na 2 CO 3 with the weight ratio of NaOH, Na 2 CO 3 and coal fly ash being 1:1:2. The extraction of Al 2 O 3 was about 52% at 400 °C which was close to that of FA-NaOH (53%) at the same temperature.
Preventing surface damage is crucial for optimal machine performance, with lubricants and additives playing a vital role in achieving this objective. This study specifically focuses on evaluating the influence of fly-ash additives on the wear resistance of machine components when incorporated into lubricant oil. The experiments were …
This research studied the improvement of the geopolymerization of bottom ash (BA) by incorporating fly ash (FA) and using flue gas desulfurization gypsum (FGDG) as additive. The BA:FA ratios of 100:0, 75:25, 50:50, 25:75, and 0:100 were used as the blended source materials. The source materials were then replaced with 0%, 5%, 10%, …
Mingyu et. al [59] also reported the effect of 10% Mg 2 SO 4 on a fly-ash based geopolymer concrete activated with NaOH and CaO together as an activator with two different types of additives ...
In the present work, rheological behaviour of a fine particulate fly ash slurry suspension is studied with and without addition of an additive. Rheological experiments are performed for the range ...
There are three denitration mechanisms on the surface of fly ash: physical adsorption, chemical adsorption and absorption process. Among them, chemical …
A geopolymer binder is measured as an alternative and elective material to customary Portland binders. Utilization of Fly ash (FA) as a primary binding material limits the waste creation of thermal power stations and reduces environmental impacts. This paper presents the strength performance of geopolymer concrete (GC) with different …
When OPC was used as an additive in high calcium fly ash geopolymer 30, the final setting time was greatly reduced from 47 to 10 min for 10 M NaOH concentration. These materials are suitable for ...
Dry beneficiation of three high loss-on-ignition (LOI) fly ashes were conducted. The combination of two different types of dry separation techniques—ultrasonic sieving and triboelectrostatic separation—were used for this study. The results indicate that a simple separation of unburned carbon from fly ash is achievable at particle sizes of ...
test to measure the scratch width and weight loss of balls using different lubricant oil formulations, including 0, 0.1%, 0.5%, 0.75%, and 1% additive. The findings demonstrate that the inclusion of 0.5% fly ... influence of fly ash additives on the load-carrying capacity and anti-wear properties of lubricants. It is essential to determine
For 7 d aged geopolymers based on the 90% fly ash + 10% calcite blend, the strength was 8.0-, 3.5- and 2.9-fold higher than that for the geopolymers based on the unblended fly ash for 30 s, 180 s ...
General appearance of fly ash LOI 2% from CBO-OTEO LB The blend CEM II/A-V 42.5 has the same constituents and particles as CEM I 52.5 N above, that is Portland clinker grains with a phase of ...
The additive ratio was defined as the weight ratio of fly ash/ (oily sludge + fly ash), which was set as 0.0 wt% (without fly ash), 16.7 wt%, 37.5 wt% and 50.0 wt%, respectively. The oily sludge and fly ash were mixed in different proportions in a blender and were stirred for 30 min to achieve a uniform mixture.
The fly-ash specimen has taken from Tata Tinplate Company Ltd, Jamshedpur, India. Experiments were carried out on a fly ash sample. A pycnometer technique was utilized to obtain the specific gravity of the fly-ash, which was 2.515. A MCR 92 rheometer was used to evaluate the rheological behavior of the fly ash-water slurry …
The mixed geopolymer had lower fluid loss without using any fluid loss control additive that made it a good candidate for cementing applications such as horizontal drilling, gas migration risk ...
addition of fly ash) and a decrease in CaO content of 59,74% (PCC cement without the addition of fly. ash) to 50,85% (PCC cement with 28% the addition of fly ash) and SO content from 1,98% (PCC ...
Chandel et al. [1] studied the effect of Henko detergent and sodium-hexa-meta phosphate (in the ratio of 1:5) as an additive on coal fly ash slurry suspension rheological behavior at higher solid ...