Therefore, this article proposes a method of obtaining artificial lightweight aggregate consolidated using two methods: drum and dynamic granulation. Hardening was …

This material made with natural or artificial lightweight aggregates are available in many parts of the world and can be used in a great variety of ... Polat, R., Demirboǧa, R., Karakoç, M.B., Türkmen, I.: The influence of lightweight aggregate on the physico-mechanical properties of concrete exposed to freeze-thaw cycles. Cold Reg ...

Download scientific diagram | natural and artificial lightweight aggregates used in lightweight concrete. from publication: Review on the mixture design and mechanical properties of the ...

One of the artificial lightweight aggregates with a wide range of applications is Lightweight Expanded Clay Aggregate. Clay is utilized in the production of light aggregates.

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).

Therefore, more research on the durability of artificial lightweight aggregate concrete made by MSWIBA is needed to justify its application in actual engineering. In this paper, MSWIBA fine particles (less than2 mm), ground granulated blast furnace slag (GGBFS), fly ash (FA), and ordinary Portland cement (OPC) are combined to produce three ...

A lightweight aggregate (LWA) is a solid substance having a particle density of less than 2.0 g/cm 3 and a loose bulk density of less than 1.2 g/cm 3 (BS EN 13055-1, 2002) [].LWAs are porous and granular materials that have been widely used in architecture, landscaping, and geotechnics [].In addition, it can provide better sound absorption and thermal insulation [].

Most artificial aggregates are classified as lightweight aggregate and their strength is below 10 MPa. Sintering technology is the most effective method to limit the leaching of heavy …

Furthermore, Lee et al. [19] studied the bloating mechanism for artificial lightweight aggregate of surface modification with coal ash. Bernhardt et al. [20] experimented the effect of the different additives including Na 2 CO 3, SiO 2, Fe 2 O 3, and Fe with various percentages on artificial lightweight aggregate.

Hence, fresh properties of artificial lightweight aggregate concrete are superior to that of normal-weight concrete. 6. Artificial aggregate concrete's mechanical properties are inferior to conventional concrete due to lighter aggregates' higher porosity and lower strength. However, it is feasible to use in both structural and non-structural ...

Characteristics of artificial lightweight aggregate. Used for the purpose of reducing the weight and improving a wide range of functions required in the industrial field such as insulation, sound absorption, heat resistance, process ability, and

Abstract Artificial lightweight aggregate (LWA) is produced using water reservoir sediment, spent glass, and diatomaceous earth in various compositions and sintering temperatures between 1020°C and 1110°C. This study prepared aggregate samples whose physical properties included bloating index (BI), water absorption capacity (WAC), apparent …

A few manufacturing methods for artificial lightweight aggregate have been considered, with most common being firing in a rotary kiln using natural materials such as expanded clay [10,11]. …

Artificial aggregate is a kind of artificial lightweight aggregate mainly prepared by industrial solid wastes and has been widely used in concrete to replace natural aggregate [8, 9]. Except that, the low-density property of artificial aggregate can effectively reduce the concrete weight so that improving the lifting efficiency of precast ...

Artificial lightweight aggregates in concrete achieve good workability without using superplasticizers and air-entraining agents due to their rounded shape. It can also achieve …

This paper proposes empirical models to straightforwardly assess the CO2 emissions of artificial lightweight aggregate concrete (ALWC) and bottom ash aggregate concrete (BAAC). The system boundary identified for the assessment was from the cradle to pre-construction, considering component materials, production, and transport of concrete. The …

A few manufacturing methods for artificial lightweight aggregate have been considered, with most common being firing in a rotary kiln using natural materials such as expanded clay [10,11]. Numerous studies of firing processes for artificial lightweight aggregates have been conducted.

Converting these industrial byproducts into artificial lightweight aggregates will be highly beneficial for sustainable development. It was found that industrial wastes like fly ash, municipal solid waste, palm oil shell, and water treatment sludge are some of the potential materials to produce lightweight aggregates. ... Lightweight aggregate ...

A good quality of light weight aggregate for concrete can be produced with co-combustion fly ash with high free lime. The CO 2 foot print of ordinary concrete itself will increase by using such aggregate instead of natural coarse aggregate. In the Dutch situation the operational costs of producing LWA for concrete are higher than the potential selling price.

The artificial lightweight aggregate using alkali-activated fly ash and silica fume has a high water absorption value, which does not meet the limits recommended by ACI-213R (less than 25%) [43]. The water absorption value of LWAs, using alkali-activated fly ash and GBFS, ranges from 18.73% to 30.09% [22].

Artificial lightweight aggregate materials on the market are mainly produced by sintering in a rotary kiln using slate or shale. Recently, many studies have focused on various types of solid waste such as plastic waste [ 1 ], sewage sludge [ 2 ], coal-fired power plant ash [ 3, 4 ], drill cuttings [ 5 ], mining tailings [ 6 ] or carbon fiber ...

Lightweight aggregate concrete (LWAC) is a type of lightweight concrete produced by introducing lightweight materials as conventional coarse or fine aggregate substitute. There are different …

Artificial lightweight aggregate can bring advantages to the construction field due to its lower density, thus reducing the dead load applied to the structural elements. In addition, application of artificial lightweight aggregate in lightweight concrete will produce lower thermal conductivity. However, the production of artificial lightweight ...

There are wide applications of artificial aggregate, for instance construction, agriculture, geotechnical fill, waste water, drainage and many more. Physical properties such as bulk …

some properties of lightweight aggregate GPC. In this investigation high strength lightweight aggregate GPC was produced for the first time in Iraq from fly ash and local artificial lightweight aggregate with high compressive strength and low dry density. BS 3797The beneficial consequence of producing high strength

Regarding the molding technique, existing researches on the artificial lightweight aggregate production have mainly focused on the use of pelletization method (Colangelo et al., 2015; Baykal and Döven, 2000; Manikandan and Ramamurthy, 2007), which in fact still faces many challenges such as the control of the sensitive water spraying rate ...

Artificial lightweight aggregate concrete with a cement content of 249 kg/m 3 develops approximately 32.1 N/mm 2 compressive strength. View. Show abstract ...

Lightweight aggregates (LWA) are characterized by lower bulk density in a comparison with common construction aggregates [1].LWA with a density below 2000 kg/m 3 are used particularly for the reduction of weight, improvement of durability, and enhancement of thermal and acoustic properties of concrete [2].Quite a few different lightweight materials have …

The most commonly used artificial aggregate in many industries is sintered fly ash. The use of lightweight aggregate in concrete has gained popularity due to its low density, good thermal conductivity and strength, environmental friendliness and many other advantages 5, 6.. A global environmental problem due to the use of large amounts of natural resources is …

The partial replacement of conventional natural coarse aggregate (NCA) with artificial light weight aggregate (LWA) manufactured from local clay and solid waste to develop a lightweight aggregate concrete (LWAC) for the structural use was studied in this paper. Red clay and Savar clay were used individually with solid wastes like rice husk ash ...