- +8615978832153
- من الإثنين إلى السبت: 10:00 - 16:00 / يوم الأحد مغلق
artificial lightweight aggregate has a wide application on construction work (Nor, et al., 2016). As a construction material, the use of artificial lightweight aggregate will provide economic advantages compare to normal aggregates in future (Arioz, et al., 2008).
أكمل القراءة
Artificial lightweight aggregate manufacturing technology using waste provides valuable economic and environmental benefits. The Republic of Korea uses 200 million tons of aggregates annually, making this country a very large market. The manufacture of lightweight aggregates using waste can enter very large amounts of other types of waste into ...
أكمل القراءة
The production of artificial lightweight coarse aggregate using fly ash has potential for its large-scale utilization in the construction industry and this is an area that merits attention in many ...
أكمل القراءة
3.1 Definition of Lightweight Aggregates Lightweight aggregate is the generic name of a group of aggregates having a relative density lower than normal density aggregates (natural sand, gravel, and crushed stone), sometimes and is referred to as low density aggregate. Structural lightweight aggregate-Structural aggregate meeting the requirements of
أكمل القراءة
This paper investigates the effect of using metakaolin Artificial Lightweight Aggregates (ALWA) as a substitute for coarse aggregates to produce structural lightweight concrete. A combination of 10M NaOH solution and sodium silicate solution was used as alkali activator.
أكمل القراءة
Based on the classification of lightweight concrete according to the level of compressive strength and aggregate type by Mindess and Young [4], lightweight aggregate concrete using artificial lightweight aggregate (ALWA) or lightweight coarse sintered fly ash and ed slag aggregates can produce compressive strength values of 17-41 MPa with a ...
أكمل القراءة
Artificial Lightweight Aggregate market competitive landscape provides details and data information by players. The report offers comprehensive analysis and accurate statistics on revenue by the player for the period 2016-2027. It also offers detailed analysis supported by reliable statistics on revenue (global and regional level) by players ...
أكمل القراءة
PURPOSE:To increase the productivity of artificial lightweight aggregate and to improve the workability of lightweight concrete by successively subjecting granules of starting material for aggregate …
أكمل القراءة
for the manufacture of artificial lightweight aggregate and it has a promising future due to the increasing interest and its need for using as a recycling waste product. Pelletization is a worldwide process used for the manufacturing of artificial aggregates. According to the mechanism of …
أكمل القراءة
aggregates were described. These lightweight plastic aggregates were then used as substitute for natural aggregates at percentages of 0%, 3%, 6%, and 9%. Recyclable plastic bags measuring 10–20 mm were gathered then heated in an oven at approximately 150 °C for nearly 10 min.
أكمل القراءة
of artificial lightweight aggregates (ALWAs) are due to clays bloatingduringthe aggregationprocess.The twomajor bloating parameters governing bloating are (1) materials producing an adhesive glass phase to trap gases, and (2) substances being present that can isolate gases while the glass phase forms. Therefore, in any study of lightweight ...
أكمل القراءة
The artificial lightweight aggregate produced by the process of the present invention has usually an absolute dry specific gravity of not higher than 1.1. The absolute dry specific gravity can be lowered to 0.9 or below by adjusting the amount of the hydraulic material to a value within the range defined by the present invention. Since most of ...
أكمل القراءة
Study on Radioactivity Components, Water Quality and Microstructure Characteristic of Volcano Ash as Geopolymer Artificial Aggregate By Prof. Dr. Mohd Mustafa Al Bakri Abdullah Optimization of NaOH Molarity, LUSI Mud/Alkaline Activator, and Na2SiO3/NaOH Ratio to Produce Lightweight Aggregate-Based Geopolymer
أكمل القراءة
The purpose of this study was to improve the recycling rate of industrial wastes by investigating the bloating mechanism of artificial lightweight aggregate depending on the ramping rate and time, which is a dynamic parameter in the production of artificial lightweight aggregate. In this study, coal bottom ash and dredged soil at a weight ratio of 1 : 1 from a domestic …
أكمل القراءة
The strength and density of concrete made from cold-bonded artificial lightweight aggregates and natural gravel were also studied in which the result confirms that cold-bonded artificial lightweight aggregates in concrete reduces the compressive strength but meets the required strength to be used as a structural material as required by ACI 318 ...
أكمل القراءة
A lightweight aggregate of low energy requirements for use in making lightweight concrete comprising cement kiln dust pellets or cement kiln dust and fly ash pellets which have been cured at low temperature and high humidity.
أكمل القراءة
An experimental program was conducted to investigate the fresh properties, mechanical properties and durability characteristics of the self-compacting mortars (SCM) produced with pumice powder and Artificial Lightweight Fine Aggregate (aLWFA). aLWFA was produced by using fly ash. A total of 16 different mixtures were designed with a constant water-binder ratio of 0.37, in which natural sands ...
أكمل القراءة
Lightweight concrete manufactured from artificial aggregates or natural lightweight aggregate [2][3][4] [5] [6][7][8][9] has potential in the production of prefabricated concrete elements ...
أكمل القراءة
Production of artificial lightweight aggregate (LWA) from industrial by-products or abundant volcanic mud is a promising solution to prevent damaging the environment due to the mining of natural aggregate. However, improvements are still needed in order to control the high water absorption of LWA and strength reduction in resulting concrete or mortar.
أكمل القراءة
Study on the Artificial Lightweight Aggregate by Using Reject Ash, Dredged Soil, and Ferrous Materials p.291. Synthesis and Formation Mechanism of Mn-Doped Zn 2 SiO 4 Brown Pigment p.295. Synthesis of Co-Doped Tialite Ceramic Pigments and Coloring in Glazes p.299. Synthesis of Perovskite Brown Pigments ...
أكمل القراءة
Sintering and cold-bonding are two widely-recognized methods to produce artificial lightweight aggregates (Qian et al., 2020; Tajra et al., 2019). Sintering highly relies on the use of elevated temperature, which is commonly higher than 1000 °C (to crystallize the raw materials), while the traditional cold-bonding method usually utilizes ...
أكمل القراءة
Artificial lightweight aggregates as utilization for future ashes - A case study Waste Manag. 2012 Jan;32(1):144-52. doi: 10.1016/j.wasman.2011.08.017. Epub 2011 Oct 2. Authors Angelo Sarabèr 1, Robert Overhof, Terry Green, Jan Pels. Affiliation 1 KEMA, P.O. Box 9035 ...
أكمل القراءة
Artificial lightweight aggregate concrete with a cement content of 249 kg/m 3 develops approximately 32.1 N/mm2 compressive strength. Key words : Cold-bonded aggregate, Lightweight aggregate concrete, Supplementary cementitious material, Alkali Resistant glass fibre, Compressive strength. Introduction The world cement production has increased dra-
أكمل القراءة
artificial lightweight aggregates used for manufacture of precast blocks, are given in IS : 2686-1977f. 0.3 For the purpose of deciding whether a particular requirement this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in ...
أكمل القراءة
sources of artificial lightweight aggregate that can be produced from a wide variety of raw materials and production procedures. The properties and the characteristics of lightweight aggregates vary within wide limits2. Expanded polystyrene s (EPS) is currently used as a popular packaging or insulating ...
أكمل القراءة
Artificial lightweight aggregates (LWA) generally can be more deformable in lateral expansion than that of natural crushed stone. Therefore, concrete made of LWA can exhibit a higher Poisson effect, and this characteristic could be advantageously used in the confined elements.
أكمل القراءة
The HPLC in this paper is produced with artificial lightweight aggregate that has recently been invented using natural deposits of the Yellow River, China. Since the aggregate has very low water absorption, the HPLC is expected to exhibit excellent structural performance such as lower weight, higher durability, and better mechanical properties ...
أكمل القراءة
The superior qualities of expanded shale, clay and slate lightweight aggregate are effective and economical in many applications. STRUCTURAL LWC. SmartWALL Masonry. ASPHALT CHIP SEAL. Water Treatment. GREEN ROOF & HORTICULTURE. INTERNAL CURING. GEOTECHNICAL.
أكمل القراءة
artificial lightweight aggregate has a wide application on construction work (Nor, et al., 2016). As a construction material, the use of artificial lightweight aggregate will provide economic advantages compare to normal aggregates in future (Arioz, et al., 2008).
أكمل القراءة
The purpose of this study is to compare the bloating mechanism of artificial lightweight aggregate under sintering and rapid sintering conditions to identify the factors behind the bloating of the lightweight aggregate under these sintering conditions, and to find suitable temperature ramping conditions. The aggregate had an average particle size of 10 mm as formed using acid clay, and it was ...
أكمل القراءة
Lightweight Aggregate Self-Compacting Concrete: State-of-the-Art & Pumice Application. Journal of Advanced Concrete Technology, 2011. Michael Kaffetzakis. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full …
أكمل القراءة