The feasibility and effectiveness of BAF loaded with a novel non-sintered fly-ash ceramsite (NSFC) as a pretreatment method of a dual membrane system were investigated in detail. The results showed that the CODCr, turbidity, NH3-N and the silt density index (SDI) in the effluent from the BAF were reduced to 24.2 mg/L, 12.17 NTU, 0.42 mg/L and 7 ...
sintered fly ash filter (NSFF) with sewage sludge as additive was prepared. It consists of 70.9% fly ash, 7% sewage sludge, 9% cement, 7.1% CaO, 1% NaHCO 3 and 5% sodium silicate solution.
Fig. 5 displays the raw red mud (a) and sintered red mud–fly ash mixtures at 1100 °C with varying the amount of fly ash from 10 to 20 wt % in the red mud. The red mud composed of very fine particle size where the particle size ranges from a few microns to over 20 μm. Red mud has a variety of different morphology, some individual particle ...
LWA - Sintered Fly Ash Coarse Aggregate by IMFA receives ISI certification Sep 14, 2020 Internal Press Release. Indian Metals & Ferro Alloys Ltd (IMFA) receives BIS certification for its Sintered Fly Ash Coarse Aggregate. The fly ash aggregate by IMFA is the first and the only in India to comply with the ISI quality standards.
The utilization of different types of fly ash for artificial sintered aggregate in order to produce lightweight high strength concrete is studied 2,37,38.
Lightweight Sintered Fly-ash Aggregates. Get Started. LITAGG SPM. Sand-Free premixed mortar for waterproofing . Get Started. LITAGG Lightweight Aggregates . Litagg Industries Pvt Ltd (LIPL) is committed to delivering the world's best …
The purpose of the research was to determine the possibility of using sintered fly ash as alternative aggregate in structural concrete and the impact of sintered fly ash lightweight aggregate on its physical, mechanical and durability properties. Conducted tests were executed according to European and Polish standards.
Coal gangue and fly ash were selected as raw materials to prepare building sintered brick. The influence of ratio of coal gangue and fly ash and sintering temperature on mineralogical composition ...
The fresh, mechanical and durability properties of the concrete produced with sintered flyash concrete were also summarized. Sintered flyash aggregate concretes have …
This study addresses the issue of the resistance to high temperatures of lightweight concrete lightweighted with sintered fly ash aggregate. Lightweight concretes with different amounts of lightweighting and …
Fig. 2 shows the density variation with firing temperature for the as-received and the 4- and 8-h milled sintered fly ash samples. The 8-h milled samples had a maximum density of 2.48 g cm −3 that was achieved by firing at 1170 °C for 1 h, and this was a dark brown/black hard ceramic material. Firing at 1190 °C resulted in a reduction in density to 2.35 g cm −3.
Fly ash aggregate with kaolinite. It is also observed from Fig. 1b that the aggregate with kaolinite sintered between 700 and 1000 °C exhibited no volumetric shrinkage, resulting in a density ratio higher than 1 and higher porosity of 42 % (Fig. 2b). This indicates that the sintering temperature is not adequate to initiate the fusion of particles as evident from Fig. …
The present study develops lightweight concrete (LWC) with sintered fly ash aggregates (SFA) and does experimental and statistical analysis. For this purpose, LWC with …
Fresh and mechanical properties of lightweight concrete with sintered fly-ash aggregates was compared with that of normal weight concrete with granite aggregates for various water/binder ratios ...
Sintered fly ash aggregates when used as a substitute for natural aggregates benefits the preservation of natural aggregates as well as the utilization of fly ash which poses …
Test results denoted that the maximum substitution (62%) of sintered fly ash aggregates showed an appreciable improvement in strength compared to cold bonded aggregates. However, a highest compressive strength up to 39.97 MPa (62BT-S) was obtained in the case of sintered fly ash aggregate substituted concrete mixes subjected to hot water …
In this work lignite coal fly ash has been sintered to form ceramic materials using conventional powder processing based on milling, powder compaction and firing, without the addition of organic binders or other inorganic additives. The particle size of ceramic powders is a key process variable that controls sintering and the properties and ...
The purpose of the research was to determine the possibility of using sintered fly ash as alternative aggregate in structural concrete and the impact of sintered fly ash lightweight aggregate on its physical, mechanical and durability properties. Conducted tests were executed according to European and Polish standards.
pellet or granule of the fly ash followed by firing on some type of sinter strand. Be cau.se fly ash usually contains some unburned carbon, there is an opportunity to utilize the available heat …
This paper investigates the effect of sintered fly ash lightweight aggregate as coarse aggregate substitution on the mechanical properties of concrete. The lightweight aggregate (LWA) was produced using the cold bonded method and then sintered at a temperature of 900°C. An alkaliactivated system was applied as a binding agent of the LWA.
[8] Arora V. and Ojha P. 2015 National council for cement and building material (India) Suitability of sintered fly ash light weight aggregate in structural concrete. Google Scholar [9] Nadesan M. S. and Dinakar P. 2017 Structural concrete using sintered flyash lightweight aggregate: A review Construction and Building Materials 154 928-944 ...
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), metal oxides (Si, Fe, Ca, and Al), and other inorganic substances. ... (2008). "Characterization of sintered coal fly ashes." 87(7): 1334-1340. Google Scholar. Ferraris et al ...
It is a new type of sintered fly ash LWA manufactured in Poland since 2015. Unlike expanded clays or shales, available on the market in various density types intended for a wide spectrum of concrete applications, from insulating to structural ones, Certyd is dedicated especially for structural purposes. Its particles are characterized by a ...
Fig. 1 represents the XRD patterns of the three samples. As shown in Fig. 1, the main crystalline phase precipitated in all sintered samples is Na 2 Al 2 Si 5 O 14.SiO 2 and Al 2 O 3 which are the main constituents of fly ash still exist during the sintering process and form Na 2 Al 2 Si 5 O 14 with Na 2 O introduced from sodium silicate and Na 2 B 4 O 7.The small …
[8] Arora V. and Ojha P. 2015 National council for cement and building material (India) Suitability of sintered fly ash light weight aggregate in structural concrete. Google …
As sintered fly ash pellets make the concrete lighter in comparison to natural coarse aggregate concrete, the structural properties such as load deflection behaviour of beam and mechanical properties need to be investigated. In addition to structural properties, it is also essential to explore durability aspect of the same. ...
heavyweight concrete.4 The sintered-fly-ash lightweight aggregate proves to be a consistent and better construc-tion material.5 The sintered-fly-ash aggregate is pro- duced from a sintering ...
The present study develops lightweight concrete (LWC) with sintered fly ash aggregates (SFA) and does experimental and statistical analysis. For this purpose, LWC with different proportions of ...
The sintering behavior of different particle size fly ash for sintered glass-ceramics was further described by linear shrinkage. The relationship between the linear shrinkage of sintered samples and sintering temperatures was demonstrated in Fig. 5.
Expanded clay or shale, and sintered fly ash aggregates (SFA) are some of the commercially available lighweight aggregates which are manufactured through the heat treatment process [4]. In the manufacturing of SFA, a homogenous mix of the raw materials such as fly ash, coke breeze and binders like bentonite or cement or lime is used. The ...