scholarly journals Strength Behavior of Pumice Stone Lightweight Concrete Beam in Contrast with Reinforced Concrete Beam

2019 ◽  
Vol 8 (3) ◽  
pp. 297-300
Keyword(s):  
Concrete Beam ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Reinforced Concrete Beam ◽  
Unit Weight ◽  
Light Weight ◽  
Pumice Stone ◽  
Light Weight Concrete ◽  
Foamed Concrete ◽  
Light Weight Aggregate

The density of concrete less than that of nominal concrete achieved by any means is referred as Light weight concrete. Circulated air through Concrete, Light Weight Aggregate Concrete, Foamed Concrete are different types of Light weight concrete. In this research study, the density of the concrete has been reduced by replacing the coarse aggregate by the pumice stone as light weight coarse aggregate. The major advantage of this study is to reduce the risk of seismic damages of the structure by reducing the self weight of the structure. The decrease in dead load of structure because of the utilization of LWC additionally brings about reduction in the cross segment of other auxiliary individuals such as beam, column and foundation. The pumice stones have huge number of voids and have moderately higher warm protection than the ostensible aggregates. The objective of this research is to obtain light weight concrete having low unit weight and an optimum compressive strength. The Nominal concrete and the light weight concrete is prepared and the tests were led to decide the mechanical properties and compressive quality, its flexural capacity in beams

scholarly journals Application of Light Expanded Clay Aggregate as Replacement of Coarse Aggregate in Concrete Pavement

2018 ◽  
Vol 7 (4.2) ◽  
pp. 1
Author(s):  
Pavithra A ◽  
Jerosia De Rose D
Keyword(s):  
Coarse Aggregate ◽  
Mineral Admixture ◽  
Maintenance Cost ◽  
Light Weight ◽  
Conventional Concrete ◽  
Coarse Aggregates ◽  
Light Weight Concrete ◽  
Clay Aggregates ◽  
Light Weight Aggregate ◽  
Effect Of Light

The main aim of this project is to develop a light weight concrete (LWC) by replacing the coarse aggregate with light weight expanded clay aggregate. The damage caused in LWC is less significant than conventional concrete and therefore the maintenance cost is also reduced. In order to understand the effect of light weight aggregate in concrete, conventional concrete of strength 30MPa was designed with the density of 2400 kg/m3. Then the natural coarse aggregates were replaced by clay aggregates and light weight concrete mix of density 1800 kg/m3 was designed to meet the desired strength requirement. As the density of the concrete tends to be lowered, the strength of the concrete may also tend to decrease. Hence suitable chemical and mineral admixture is to be incorporated in addition to significant water reduction to meet the strength requirement. Cement content kept constant in both the cases. The details of mechanical properties and durability properties of conventional and light weight concrete are reported in this paper. 

Properties of Light Weight Concrete Containing Crumb Rubber Subjected to High Temperature

2016 ◽  
Vol 718 ◽  
pp. 177-183 ◽  
Author(s):  
Tanapan Kantasiri ◽  
Pornnapa Kasemsiri ◽  
Uraiwan Pongsa ◽  
Salim Hiziroglu
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Strength Loss ◽  
Crumb Rubber ◽  
Unit Weight ◽  
Light Weight ◽  
Cement Ratio ◽  
Light Weight Concrete ◽  
Temperature Exposure ◽  
Light Weight Aggregate

In this study, the compressive strength, unit weight and chemical structure of light weight concrete (LWC) containing crumb rubber after exposure to high temperature are investigated. The crumb rubber was used as light weight aggregate in place of normal aggregate at the content of 3-15 wt% of LWC. For all mixtures, the water/cement ratio and sand/cement ratio were fixed at 0.5 and 0.2, respectively. The experimental results showed that the unit weight of LWC containing crumb rubber decreased with increasing crumb rubber content. The unit weight and compressive strength values are in range of 1566-1761 kg/m3, 12-29 MPa, respectively. The LWCs containing 3-7 wt% and 15 wt% crumb rubber can meet the requirement of ASTM standards for structural light weight concrete and masonry, respectively. After high temperature exposure, the unit weight loss and compressive strength loss were 25% and 75%, respectively. All specimens still complied with the requirement of ASTM standard for masonry.

scholarly journals Replacement of Conventional Concrete by Light Weight Concrete

2021 ◽  
Vol 9 (11) ◽  
pp. 1760-1766
Author(s):  
Nadeem Ul Haq
Keyword(s):  
Lightweight Concrete ◽  
Construction Material ◽  
Unit Weight ◽  
Light Weight ◽  
Chloride Permeability ◽  
Conventional Concrete ◽  
Lower Weight ◽  
The Moment ◽  
The Relationship ◽  
Light Weight Aggregate

Abstract: Lightweight concrete (LWC) allows for larger spans, fewer piers, and longer bridge designs due to its lower weight and improved durability. Because superstructures with broader shoulders or additional lanes may be improved without requiring extensive work on the substructure, LWC is a particularly desirable construction material at the moment. The goal of this research was to determine the density (unit weight), splitting tensile strength, and elastic modulus of LWC mixtures under various curing circumstances in order to gain a better knowledge of LWC qualities that are critical for long-lasting and costeffective buildings. The researchers also looked at the relationship between the results of the fast chloride permeability test and the outcomes of other tests and the Werner probe surface resistance test to see if the latter may be used to forecast the permeability of LWC mixtures because it is faster and more convenient. Keywords: Light weight aggregate, pumice, compressive strength, density,

Development of Lightweight Concrete using Industrial Waste Palm Oil Clinker

2021 ◽  
Author(s):  
Ibrahim Al-Ani ◽  
◽  
Wan Hamidon ◽  
Wan Mohtar ◽  
Basma Alwachy ◽  
...  
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
Light Weight ◽  
Durability Properties ◽  
Light Weight Concrete ◽  
Water Absorption Test ◽  
Natural Aggregates ◽  
Definition Of ◽  
Strength And Durability

Concrete is a major material used in the construction of buildings and structures in the world. Gravel and sand are the major ingredients of concrete but are non-renewable natural materials. Therefore, the utilisation of palm oil clinker (POC), a solid waste generated from palm oil industry is proposed to replace natural aggregate in this research to reduce the demand for natural aggregates. One mix of ordinary concrete as control concrete; while four mix proportions of oil palm clinker concrete were obtained by replacing 25 %, 50 %, 75 %, and 100 % of gravel and sand of control concrete with coarse and fine oil palm clinker respectively by volume, with same cement content and water cement ratio. Compressive strength test was carried out of concretes with different percentages of oil palm clinker; whereas water absorption test according to respective standard, were carried out to determine the durability properties of various mixes. Based on the results obtained, the study on the effect of percentage of clinker on strength and durability properties was drawn. According to ACI classification of light weight concrete only the 100 percentage replacement can achieve the definition of light weight concrete since its density less than 1900 kg/m3 and strength larger than 17 MPa. Eventually the 25 % replacement of the normal aggregate by the OPC will improve the strength and durability of the concrete.

scholarly journals Strength Characteristics of Preformed Foam Concrete

2019 ◽  
Vol 8 (4) ◽  
pp. 8213-8216 ◽  
Keyword(s):  
Experimental Investigation ◽  
Coarse Aggregate ◽  
Strength Test ◽  
Strength Characteristics ◽  
Strength Parameter ◽  
Light Weight ◽  
Foam Concrete ◽  
Strength Parameters ◽  
Light Weight Concrete ◽  
Parameter Test

The study deals with the usage of perforated foam of various percentages to that of coarse aggregate to produce light weight concrete. With the day to day increase in industries and civilization’s expansion it has become very much necessary to produce structures with proficiently lesser weight. Its usage has become more proficient in construction of building in earthquake prone areas. This experimental investigation deals with the study of strength parameters of light weight concrete by performing various strength test and its various behavior s such as compression, tensile and flexure are studied by adding preformed foam at various proportions of 0%, 2%, 5%, 10%, 20% and 40%. All these strength parameter test are performed on 7th day, 14th day and 28th day respectively from day of casting

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