آخرین محصولات
The Basic Properties of Lightweight Artificial Aggregates …
The production of lightweight aggregate based on waste is an important step towards sustainable and ecological construction. It contributes to reducing the negative impact of the construction sector on the environment by reducing the consumption of natural raw materials and reducing waste of various origins, including rubble concrete. The physical and mechanical …
Prediction of Particle Packing Density of Alternative Fine Aggregates
Particle packing density mainly influences the behavior of concrete. Experimental determination of particle packing density is arduous and time-consuming. Thus, artificial neural network (ANN) is a tool that helps in determining particle packing density faster and accurately. ANN is used to predict the properties of the concrete with natural aggregates only. However, …
Synthesis of artificial aggregates and their impact on
Synthesis of artificial aggregates and their impact on ... - Springer
Advancements in Lightweight Artificial Aggregates: …
Artificial lightweight aggregates (ALWAs) are gaining interest because of their shift in focus from natural aggregates. Researchers have developed numerous ALWAs to eliminate the need for natural aggregates. ... Burning pulverized coal in thermal power plants produces fine, powdery fly ash. Porous, lightweight sintered fly ash aggregates are ...
Properties of waste brick powder-based artificial fine aggregate …
Shortage of natural fine aggregates (NFAs) and large amounts of construction solid waste have become prominent issues in the construction industry. To…
Aggregates in Concrete: Types, Functions, and Importance
The fine aggregate can have a surface texture as both rough and smooth. ... which are manufactured into artificial aggregates. Based on Density . Lightweight Aggregates: The bulk density of these aggregates is less than 1120 kg/m3. They have applications in lightweight concrete mixes. For example: slate, pumice, and clay.
Fine Aggregate for Concrete: 3 Classification, …
Fine aggregate commonly known as sand is an inert material widely used for construction works. From concrete production to mortar, asphalt, and even the creation of glass and bricks, sand's unique properties make it an …
A Comparative Study of Different Types of Fine …
The effect of artificial sand and crush sand as fine aggregate in concrete is to substitute the natural sand content in concrete. The experimental work is mainly concerned with the study of mechanical properties like compressive strength, …
Ling-Yu Xu ; Bo-Tao Huang (*); Victor C Li ; Jian-Guo Dai (*)
[18], iron ore tailings [19], waste glass [20] and recycled fine aggregates [21]). Artificial aggregate is an emerging technology aiming to alleviate the shortage problem of
Classification of Aggregates as per Size and Shape -Coarse and Fine …
Fine aggregate; Coarse aggregate; Fine Aggregate When the aggregate is sieved through a 4.75mm sieve, the aggregate passed through it called fine aggregate. Natural sand is generally used as fine aggregate, silt and clay also come under this category. The soft deposit consisting of sand, silt, and clay is termed as loam.
The influence of curing methods on the performance of …
Tang et al. [14], [18] produced artificial aggregate using a mixture of fine incineration bottom ash (IBA) and concrete slurry waste (CSW) as the primary raw materials. The combined content of IBA and CSW varies between 90 % and 95 %. Test results show that the strength of the aggregate falls within the range of 0.3 MPa to 2.3 MPa, accompanied ...
type of aggregate | PPT
The most important function of the fine aggregate is to assist in producing the workability and uniformity in mixture. The aggregates provide about 75% of the body of the concrete and hence its influence is extremely …
Utilization of Artificial Geopolymer Aggregates in High …
The findings in this study demonstrate the feasibility of using artificial fine aggregates in ECC production and provide a new avenue to improve ductility and sustainability for ECC materials.
Types of Aggregates Used in Construction
IS 383:1970 (Reaffirmed 2002) lays the guidelines for coarse and fine natural aggregates. Artificial aggregates are produced from materials that are produced through an artificial process. Examples of artificial aggregates are broken …
Development of engineered cementitious composites (ECC) using
The findings in this study demonstrate the feasibility of using artificial fine aggregates in ECC production and provide a new avenue to improve ductility and sustainability for ECC materials.
Artificial Aggregate
Artificial aggregates (AAs) are usually prepared by pelletizing techniques that combine fine moisturizing particles into larger ones. The fresh manufactured pellets can be turned into a …
Aggregates for Concrete
Aggregates may be broadly classi fied as natural or artificial, both with respect to source and to method of preparation. Natural sands and gravels are the product of weathering and the action of wind or water, while manufactured crushed fine aggregate and crushed stone coarse and fine aggregate are produced by crushing natural stone.
[PDF] Comparison of Physical Properties of PAE
In this study, we compared the properties of PAE (polyacrylic ester) polymer-modified mortars pre- pared from recycled waste artificial marbles and waste concrete fine aggregates. We used PAE emulsion as a polymer modifier; 30 types of specimens of polymer-modified mortars were prepared by varying the pro- portions of the polymer modifier and the recycled fine aggregates.
Investigation of the durability of eco-friendly concrete …
The coarse aggregates (CA) used were limestones with a continuous gradation of 5–25 mm, and the fine aggregates (S) were ordinary river sands given a 2.40 fineness modulus, which were obtained from local manufactures. In addition, the shale ceramsite, an artificial LWFA given a density of 834 kg/m 3 was utilized in this study. It was measured ...
Types and Classifications of Aggregates in …
Depending on the size, aggregates are divided into two types, namely fine aggregates and coarse aggregates. Fine Aggregates: These are finer particles that are less than 4.75 mm in diameter. These particles include …
Classification & Test on Aggregate
The aggregates which are obtained from man made processes are called as artificial aggregates. Surkhi, Blast furnace slag aggregate and synthetic aggregates are some kind of examples of artificial aggregates.
Alternative fine aggregates in production of sustainable concrete …
Fine aggregates can be screened in various conditions; wet, moist or dry of which air screening and hydro-cyclone process are lately used (Chow et al., 2013). This screening helps in removal of dirt, dust and high-fines. Presence of high fines (<75 μm) is highly harmful as it leads to shrinkage in concrete.
Geopolymer-Based Artificial Aggregates: A …
The depletion of aggregate-related natural resources is the primary concern of all researchers globally. Recent studies emphasize the significance of recycling and reusing various types of natural or by-product …
Internal Curing of High-Strength Concretes Using Artificial Aggregates
Their effects as fine aggregates in the mortar phase of a hypothetical concrete with a low water-to-binder ratio were studied. ... Artificial aggregates with different combinations were ...
Effects of different fine aggregate on concrete strength
The effect of artificial sand and crush sand as fine aggregate in concrete is to substitute the natural sand content in concrete. The experimental work is mainly concerned with the study of mechanical properties like compressive strength, split tensile strength and flexural strength of concrete by full replacement of natural sand by artificial sand as fine aggregate Common river …
Microstructure, XRD, and strength performance of ultra-high …
Ultra-high-performance lightweight concrete (UHPLC), a sustainable and environmentally friendly concrete crafted with artificial lightweight aggregates to preserve non-renewable natural resources like river sand, has garnered significant attention due to its exceptional mechanical properties. This study explores the use of artificial lightweight fine …
Use of Coal Bottom Ash and CaO-CaCl
1. Introduction. Concrete is an artificial material that is widely used for building infrastructure in civil engineering [] and it is estimated that around 30 billion tons of concrete are produced worldwide every year [].However, concrete production requires large quantities of natural fine and coarse aggregates, as about 70% of the total volume of concrete is composed …
An experimental analysis on the replacement of fine aggregate …
Using 60% man-made fine aggregate instead of natural fine aggregate yields the highest strength and lowest area fractured. Because man-made fine aggregate is denser than natural fine aggregate. [12] The zone of fracture expands when artificial sand replacement percentage exceeds 60%, reducing compressive strength.
Classification & Test on Aggregate
Artificial Aggregate : The aggregates which are obtained from man made processes are called as artificial aggregates. Surkhi, Blast furnace slag aggregate and synthetic aggregates are some kind of examples of artificial aggregates. B. Based on Size : According to size, aggregates can be classified as coarse aggregates and fine aggregates.
Alternative Fine and Coarse Aggregates in Concrete: A Review
This paper critically reviews the available literature on the development of manufactured aggregate for use in cement concrete. This paper has reviewed the literature on available raw …
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