Low-Energy Lightweight Aggregates by Cold Bonding of Biomass Wastes: Effects of Raw Material Proportion Adjustments on Product Properties

2021 ◽  
Author(s):  
Ricardo Serpell ◽  
Daia Zwicky
Keyword(s):  
Low Energy ◽  
Raw Material ◽  
Lightweight Aggregates ◽  
Cold Bonding

Solid Waste of Soda Production is an Important Reserve for Expanding the Raw Material Base for Production of Lime and Low-Energy, Clinkerless Binders Based on it

2020 ◽  
Vol 780 (4-5) ◽  
Author(s):  
A.N. RIAZANOV ◽  
◽  
D.A. SINITSIN ◽  
G.Yu. SHAGIGALIN ◽  
M.R. BIKBULATOV ◽  
...  
Keyword(s):  
Solid Waste ◽  
Low Energy ◽  
Raw Material ◽  
Material Base ◽  
Important Reserve

Reviews on the Properties of Aggregates Made with or without Geopolymerisation Method

2012 ◽  
Vol 626 ◽  
pp. 892-895 ◽  
Author(s):  
Rafiza Abd Razak ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Kamarudin Hussin ◽  
I. Khairul Nizar ◽  
D. Hardjito ◽  
...  
Keyword(s):  
Fly Ash ◽  
Mechanical Testing ◽  
Lightweight Concrete ◽  
Raw Material ◽  
Lightweight Aggregates ◽  
Ash Aggregates

Aggregates are popular for use in concrete and lightweight concrete applications. Recent research shows that the by-product materials such as fly ash can be used as raw material in producing aggregates and lightweight aggregates. The usage of this material can improve the quality of the aggregates produced compared to conventional in term of structurally strong, physically stable, durable, and environmentally inert. This paper summarized the process and mechanical testing on the fly ash aggregates and lightweight aggregates to be used in concrete.

Neapolitan Yellow Tuff as raw material for lightweight aggregates in lightweight structural concrete production

2005 ◽  
Vol 28 (1-4) ◽  
pp. 309-319 ◽  
Author(s):  
R. de Gennaro ◽  
P. Cappelletti ◽  
G. Cerri ◽  
M. de'Gennaro ◽  
M. Dondi ◽  
...  
Keyword(s):  
Raw Material ◽  
Lightweight Aggregates ◽  
Structural Concrete ◽  
Neapolitan Yellow Tuff ◽  
Concrete Production

Campanian Ignimbrite as raw material for lightweight aggregates

2007 ◽  
Vol 37 (1-2) ◽  
pp. 115-126 ◽  
Author(s):  
R. de Gennaro ◽  
P. Cappelletti ◽  
G. Cerri ◽  
M. de' Gennaro ◽  
M. Dondi ◽  
...  
Keyword(s):  
Raw Material ◽  
Lightweight Aggregates ◽  
Campanian Ignimbrite

Properties of lightweight aggregates produced with cold-bonding pelletization of fly ash and ground granulated blast furnace slag

2012 ◽  
Vol 45 (10) ◽  
pp. 1535-1546 ◽  
Author(s):  
Mehmet Gesoğlu ◽  
Erhan Güneyisi ◽  
Hatice Öznur Öz
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Lightweight Aggregates ◽  
Granulated Blast Furnace Slag ◽  
Cold Bonding ◽  
Furnace Slag

Obtaining low-energy cement from industrial raw material

2020 ◽  
pp. 34-40
Author(s):  
N. N. Zhanikulov ◽  
B. T. Taymasov ◽  
I. N. Borisov ◽  
M. S. Dauletiyarov ◽  
M. Zh. Aitureev ◽  
...  
Keyword(s):  
Mechanical Characteristics ◽  
Raw Materials ◽  
Low Energy ◽  
Raw Material ◽  
Pyrite Cinder ◽  
Clay Component ◽  
Free Cao ◽  
Technogenic Raw Materials ◽  
Physical And Mechanical Characteristics

The results of obtaining Portland cement by lowenergy technology using technogenic raw materials are presented. Coal wastes and tephritobasalt in a ratio of 1: 1 were used as the clay component, instead of scarce pyrite cinder, granular lead slags were used. The regularities of the influence of the compositions of the blends, saturation coefficient, silicate and alumina modules, firing modes on the chemical and mineral composition and quality of clinker and cement are established. The composition of the raw mixes was calculated according to the ROCS program, the content of free CaO in the clinker was determined. The strength of experimental cement was tested after 7 and 28 days of hardening. Its physical and mechanical characteristics and structure were studied.

Self-Tapping Screws without Pre-Drilling for Brazilian Reflorestation Species

2014 ◽  
Vol 1025-1026 ◽  
pp. 345-348
Author(s):  
Carlito Calil Neto ◽  
André Luis Christoforo ◽  
Marília da Silva Bertolini ◽  
Francisco Antonio Rocco Lahr ◽  
Carlito Calil Junior
Keyword(s):  
Structural Material ◽  
Energy Production ◽  
Relative Strength ◽  
Commercial Buildings ◽  
Low Energy ◽  
Raw Material ◽  
Residential Construction ◽  
Use Of Self ◽  
Renewable Source ◽  
Good Penetration

Wood is a renewable source of structural material with high relative strength/weight, low energy production, which kidnaps and stores carbon in its production. The large use of wood is due to its special qualities as raw material for other products manufactured in residential construction or major works such as bridges, has been widely used in roofing for industrial and commercial buildings. Commercially there are limitations on the length of the wood, resulting from the extraction of tree trunks, thus requiring the adoption of binding elements is the use of self-tapping screws efforts required by side and which can be axial, shear, tensile or compression. Whereas in Brazil does not yet exist and the promising future of the product, this research aims to study the behavior of self-tapping screws together with Brazilian reforestation species ofPinusoocarpaandLyptus(softwood and hardwood). Rothoblaas self-tapping screws had a good penetration in both woods without requiring pre-drilling, the species of Lyptus wood showed the highest values of strength and the inclination of the screws, at 45 degrees showed the best results on either species of wood.

Valorisation of electric arc furnace steel slag as raw material for low energy belite cements

2011 ◽  
Vol 196 ◽  
pp. 287-294 ◽  
Author(s):  
R.I. Iacobescu ◽  
D. Koumpouri ◽  
Y. Pontikes ◽  
R. Saban ◽  
G.N. Angelopoulos
Keyword(s):  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Low Energy ◽  
Raw Material ◽  
Arc Furnace ◽  
Furnace Steel

scholarly journals Preparation and Characterization of the Functional Properties of Synthetic Aggregates from Silico-Manganese Slag

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7303
Author(s):  
Zhibing Xing ◽  
Fenglan Han ◽  
Jiuliang Tian ◽  
Zhichao Xu ◽  
Jiaqi Wang ◽  
...  
Keyword(s):  
Fly Ash ◽  
Large Scale ◽  
Construction Materials ◽  
Raw Material ◽  
Curing Temperature ◽  
Fixed Amount ◽  
Aggregate Properties ◽  
Alkaline Activator ◽  
Natural Aggregates ◽  
Cold Bonding

A large number of natural aggregates are used in the field of construction materials, resulting in the exhaustion of natural aggregates. Therefore, looking for an alternative will slow down the consumption of natural aggregates. The sintering method not only consumes a lot of energy to prepare aggregates but also produces a lot of pollutants. In this study, silico-manganese (SM) slag was dried, ground into powder, and used as raw material. Solid and liquid alkaline activator methods were used to prepare SM slag non-burning aggregate (SMNA) by the cold bonding method. The effects of grinding time, amounts of solid and liquid alkaline activators, curing temperature, and the amount of added fly ash on aggregate properties were investigated. The aggregate microstructure was characterized by XRD, SEM, and FTIR methods, and the toxic leaching analysis of aggregate was performed. The results showed that with a fixed amount of liquid activator (16.2% wt.) and solid activator (15% wt.) and fly ash (20% wt.), respectively, and curing was performed at room temperature, the aggregate properties were optimal: the bulk density of 1236.6–1476.9 kg/m3 and the water absorption lower than 4.9–5.5%. The apparent density was 1973.1–2281.6 kg/m3, and the bulk crushing strength was 24.7–27.9 MPa. The XRD, SEM, and FTIR results indicated that amorphous gel could be formed from SM under an alkaline activator, improving the aggregate strength. The results of toxic leaching showed that the aggregate prepared from SM exhibited environmentally friendly characteristics. The SMNA was obtained via the simple and low-energy consumption production process, paving the new way toward large-scale utilization of SM.

scholarly journals A STUDY ON THE USE OF CONCRETE CONTAINING ARTIFICIAL LIGHTWEIGHT AGGREGATES MADE OF FLY ASH AS MAIN RAW MATERIAL TO THE HIGH STRENGTH CONCRETE

2002 ◽  
Vol 67 (554) ◽  
pp. 1-8 ◽  
Author(s):  
Yoshitaka ISHIKAWA ◽  
Mitsutaka HAYAKAWA ◽  
Atsushi SASAHARA ◽  
Masahiro KATOU ◽  
Masayuki YASUDA ◽  
...  
Keyword(s):  
Fly Ash ◽  
High Strength Concrete ◽  
High Strength ◽  
Raw Material ◽  
Lightweight Aggregates ◽  
Strength Concrete
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