3.1 X-ray Diffraction Analysis (XRD). Figure 1 shows the changes in the XRD pattern of RHA-AAC as a result of autoclaving at different temperatures. Figure 1 shows that autoclaving RHA-AAC at the temperature of 192 °C led to weak tobermorite peaks with low intensity. However, sharp tobermorite peaks with increased intensity were observed …

The results of phase contents obtained by the Rietveld method (Fig. 2) show that the tobermorite content increased from 6.3% to 14% when the autoclaving temperature decreased from 192 °C to 165 °C.With a further reduction from 165 °C to 134 °C, tobermorite content decreased with a lower slope from 14% to 10.3%.

Iron tailings in China have been nearly totally piled up through the history of iron ore mining. As a by-product of iron ore, the iron tailings production ratio is 1:2.5e3.0 iron ore. By 2013, the total cumulative stockpiling of iron tailings in China was 5 billion tons and the number is keeping increasing as the rising of iron tailing

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In order to realize the resource utilization of solid waste, autoclaved aerated concrete (ACC) was prepared with low silicon and high iron tailings (IOT) as the main siliceous materials. The effects of fineness and content of siliceous materials, and static curing temperature on the AAC properties, hydration products and microstructures …

To examine the environmental and economic impacts of its production process is imperative. Choosing 1 m 3 of autoclaved aerated fly ash and concrete block product as functional unit and "cradle to gate" as system boundary, a life cycle inventory is developed. The key processes and key materials with significant environmental impact are identified.

1. Autoclaved aerated concrete products are easier to process so that precise post-processing of blocks and plates can be performed (such as drilling, sawing, nailing, etc.). 2. The excellent thermal insulation …

This study provided the theoretical foundation for the utilizing of iron tailings in AAC production. Introduction Autoclaved aerated concrete (AAC) is a calcium-silicate autoclaving porous material with excellent thermal insulation ability which can be used both in load bearing wall and filler wall [1], [2], [3].

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Measured vs. calculated data according to European regulations (EN ISO 10456 [145], EN 1745 [98], red line). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.) ... A comprehensive study on the production of autoclaved aerated concrete: Effects of silica-lime-cement ...

Read this article. The article presents an innovative technique for the production of autoclaved-aerated concrete using desulfurization wastewater. The …

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This article describes the technology and automation of non-autoclaved aerated concrete production. The proposed technology differs from traditional technologies by joint grinding of raw materials, which reduces production costs and energy consumption. Automatic control circuitsfor mechanisms executing technological operations are developed. …

Production Line Type Semi Automatic. Annual Output 150,000m³. SANKON manufactures autoclaved aerated concrete plants for AAC blocks and AAC panels, offers AAC plants …

Learn more about our plants for the production of AAC. The manufacture of autoclaved aerated concrete products demands high standards for mixing and dosing of the …

Iron tailing is an industrial solid waste mostly result from the process of iron ore exploiting, which the production ratio is 1:2.5–3.0 to iron ore. Iron tailings almost totally piled up through the history of iron ore mining in China. From 2007 to 2011, the stockpiles of iron ore tailings increased by 2.899 billion metric

Semantic Scholar extracted view of "Utilization of iron tailings as substitute in autoclaved aerated concrete: physico-mechanical and microstructure of hydration products" by B. Ma et al. ... The high production of iron ore in Brazil leads to the generation of large amount of iron ore tailings (IOTs). Usually, this waste is disposed of …

Utilization of iron tailings as substitute in autoclaved aerated concrete: physico-mechanical and microstructure of hydration products. J. Cleaner Prod., 127 ... Feasibility study on utilization of municipal solid waste incineration bottom ash as aerating agent for the production of autoclaved aerated concrete. Cem. Concr. Compos., 56 …

The results indicate that the optimal mixing ratios of raw materials were 50% construction waste, 20% alkali slag, 10% cement, 18% quicklime, 2% gypsum and 0.1% aluminum powder. The suitable autoclave pressure and time were 1.5 MPa and 6 h, respectively. The physical properties of prepared AAC samples under above optimal …

This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry foaming properties, …

Also, the production methods for autoclaved aerated concrete consist of two types, chemical, and mechanical processes. The chemical response of aluminum paste makes it a porous shape having mild

Autoclaved Aerated Concrete (AAC) masonry is one of the most interesting solutions. Several studies have been published so far to investigate the influence of raw …

1)I ntroduction of AAC Production Line. Autoclaved Aerated Concrete (AAC) block and board have become the pillar industry in construction field. China (Mainland) has introduced AAC technology before 40 years, our company is the earliest manufacture and R﹠D institute of Aerated Concrete (AAC) machinery, and our technology has reached the …

1. Introduction. Autoclaved aerated concrete (AAC) is a lightweight and highly porous material with excellent thermal insulation ability which can be used both in load bearing wall and filler wall (Narayanan and Ramamurthy, 2000, Karakurt et al., 2010, Jerman et al., 2013).The physical and mechanical properties of AAC are mainly …

The Areated concrete block (light block ) is the lightweight, and green building material. With the Hongfa high quality AAC block production line, the finished green body can cut into many kinds of …

The Portland cement CEM I 42,5 R produced at PJSC "Volyn-cement" with specific surface of 330 m 2 /kg, the retaining on sieve №008 is 3,2%, the initial setting time is 1 h 50 min, the final setting time is 5 h 40 min, was used for the experiments. The fly ash (FA) from the Burshtyn TPP and light microsphere (cenosphere) are used for aerated …

construct with factory-reinforced panels of autoclaved aerated concrete (AAC). In this guide, introductory information on AAC is first presented, followed by a description of its …

The purpose of this study was to reuse desulfurization (De-S) slag in the production of autoclaved aerated concrete (AAC). The non-magnetic fraction of De-S slag is rich in calcium and silicon compounds, and therefore suitable to be an alternative raw material for AAC production. The calcium compounds in the De-S slag used in this …

Zhengzhou Yufeng Heavy Machinery Co.,Ltd is an imports and exports enterprise of China which manufactures the following products on a large scale:Autoclaved aerated concrete production line,fly ash bricks block making machine,AAC Plant,disc-type bake-free brick making machine, metallurgy mill-run equipments,brick making machine,block forming …