scholarly journals Strength assessment of concrete using rice husk ash, recycled concrete aggregate and polyvinyl alcohol fiber

2021 ◽  
Vol 889 (1) ◽  
pp. 012020
Author(s):  
Satarupa Chakraborty ◽  
Nirbhay Thakur
Keyword(s):  
Polyvinyl Alcohol ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Concrete Strength ◽  
Research Work ◽  
Strength Test ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Polyvinyl Alcohol Fiber ◽  
Pva Fiber

Abstract : This research work present the finest proper mix by adding and replacing with some other admixture materials having same properties as standard concrete materials. The substances that are used in this Rice husk ash (RHA) Recycled concrete aggregates (RCA) and polyvinyl alcohol fiber (PVA). Coarse aggregates was replaced with RCA at 50% and 0-20% RHA in scheming concrete mixes. For this, 5 to 20% (such as 5%, 10%, 15% and 20%) of RHA has been used as a fractional replacement of cement. PVA fiber has been added to this mix at fixed percentage of 0.50% by weight of concrete. 6 mm geometric length of PVA fiber which were aspect with ratio of 428 were used in this research work. In the present research work I did non-destructive and destructive tests after 7 days and 28 days. The values of tests were 10% for RHA and 50% of RCA with fiber fulfills which was PVA which were designed as for the requirement of construction industry. The results show that by adding more amount of RHA and RCA the concrete strength starts decreasing. Tests performed over concrete: Rebound Hammer Test, Flexural Strength Test, Water Absorption Test, Compressive Strength Test, Split Tensile Strength Test, and Ultrasonic Pulse Velocity Test.

scholarly journals Strength Assessment of Concrete using Rice Husk Ash, Polyvinyl Alcohol Fiber and Recycled Concrete Aggregate: A Critical Review

2021 ◽  
Vol 9 (VI) ◽  
pp. 723-730
Author(s):  
Satarupa Chakraborty
Keyword(s):  
Polyvinyl Alcohol ◽  
Rice Husk ◽  
Coarse Aggregate ◽  
Rice Husk Ash ◽  
Recycled Concrete ◽  
Partial Replacement ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Polyvinyl Alcohol Fibre ◽  
Alcohol Fibre

In this review study, the effect of three different materials such as rice husk ash, recycled concrete aggregate and Polyvinyl Alcohol fibre was reviewed in detail. Several past studies related to these material usage in strength enhancement of concrete was studied in detail. Rice husk ash is the ash which is mainly derived after burning the waste derived from the rice industry after the processing of rice. Recycled concrete aggregate is mainly the aggregate derived from the constructional waste. Polyvinyl Alcohol fibre is a special type of high strength fibre that is mainly used to improve the flexural strength and internal bonding of the concrete. Numerous studies were discussed in detail and depending upon the studies certain conclusion are drawn which are discussed further. Several studies related to the usage of rice husk ash conclude that the most optimum usage percentage of rice husk ash as partial replacement of ordinary Portland cement was at 10 percent usage. After 10 percent usage strength tends to decline. Results related o usage as partial replacement of natural fine aggregate that is sand showed that it can be used as partial replacement of natural coarse aggregate up to 20 percent and beyond that usage the strength was declining. The studies related to the usage of recycled concrete aggregate conclude that the most optimum percentage of usage of recycled concrete aggregate as partial replacement of natural coarse aggregate was 50 percent replacement and beyond this percentage the strength starts declining so therefore should not be used beyond that limit. Studies related to the usage of Polyvinyl Alcohol fibre revealed that the most optimum percentage of Polyvinyl Alcohol fibre was 1.5 percent and beyond this percentage both the compressive strength of concrete and flexural strength of concrete was declining. Test results concluded that Polyvinyl Alcohol fibre should be used up to 1.5 percent only.

scholarly journals Shrinkage and porosity in concretes produced with recycled concrete aggregate and rice husk ash

2019 ◽  
Vol 12 (3) ◽  
pp. 694-704
Author(s):  
V. CECCONELLO ◽  
B. R. C.SARTORI ◽  
M. P .KULAKOWSKI ◽  
C. S. KAZMIERCZAK ◽  
M. MANCIO
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Recycled Concrete ◽  
Recycled Aggregate ◽  
Concrete Aggregate ◽  
Supplementary Cementitious Material ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates ◽  
Binder Ratio ◽  
Water To Binder Ratio

Abstract The admixture of recycled concrete aggregates (RCA) in new concretes is an interesting alternative in the efforts to mitigate environmental impacts. RCA may increase porosity and change properties of concretes. Rice husk ash (RHA) is employed as supplementary cementitious material may improve concrete properties. The present study investigated the shrinkage of concrete prepared with RCA and RHA, proposing a mathematical model to explain the phenomenon. Concretes were produced with 25% and 50% of coarse recycled aggregate as replacement of natural aggregate, 0%, 10%, and 20% of RHA as replacement of cement, and a water-to-binder ratio of 0.64. Water absorption and capillary and total porosities were analyzed on day 28. Shrinkage tests were conducted on days 1, 4, 7, 14, 28, 63, 91, and 112. The results point to a significant interaction between RHA and RCA.

scholarly journals Intelligent Replaced of Natural Aggregate and Cement with Recycled Concrete Aggregate, Rice Husk Ash

2020 ◽  
Vol 8 (5) ◽  
pp. 3852-3856
Keyword(s):  
Co2 Emissions ◽  
Rice Husk ◽  
Compression Test ◽  
Rice Husk Ash ◽  
Fixed Ratio ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycle Concrete ◽  
Fixed Proportion ◽  
Recycle Concrete Aggregate

Annually a huge amount of construction and demolition (C&D) waste is generated. It becomes really harmful and posing an adverse effect to the environment, increasing waste generation have demanded the need for recycling the C&D Waste. Similarly, as cement accounts for 10% global CO2 emissions, it is imperative to reduce the embodied CO2 of concrete. Thus, the sustainability of concrete is a major issue which needs to be addressed. Ways of achieving this is to recycle concrete waste back into concrete to reduce waste and use of supplementary cementitious to reduce CO2 emissions. This research aims to take a two-pronged approach by investigating the effect of pozzolanic replacement with fixed proportion of recycle aggregates to evaluate the strength and potential structural application. In this research carried out M40 mix design and rice husk ash were substituted for cement at level of 5, 10, 15, 20% by using a fixed ratio of 10, 20,30% recycle concrete aggregate (RCA). Compression test, Split Tensile Test, Flexural Test and Rapid Chloride penetration test were conducted on specimens of Grade M40, for compression test the cube was cured for 28 days and 90 days for durability (RCPT). All RCA mixes and up to 15% RHA replacement satisfied M40 criteria at 90 days, however the 20% RHA replacement mix was close to achieving this. Thus, the finding of this study indicates the use of concrete containing 30% RCA and 15% RHA can be substantially reduce waste and embodied CO2 without compromising on strength and durability parameters.

Strength development of recycled concrete aggregate stabilized with fly ash-rice husk ash based geopolymer as pavement base material

2019 ◽  
Vol 21 (8) ◽  
pp. 2344-2355 ◽  
Author(s):  
Theerapruet Poltue ◽  
Apichat Suddeepong ◽  
Suksun Horpibulsuk ◽  
Wisanukhorn Samingthong ◽  
Arul Arulrajah ◽  
...  
Keyword(s):  
Fly Ash ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Base Material ◽  
Recycled Concrete ◽  
Strength Development ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Pavement Base

scholarly journals APPLICATION OF COCONUT FIBER AND POLYVINYL-ALCOHOL BLENDS TO IMPROVE THE DURABILITY OF CONCRETE STRUCTURES IN VIETNAM

InterConf ◽  
2021 ◽  
pp. 418-426
Author(s):  
Thi Ngoc Quyen Nguyen
Keyword(s):  
Polyvinyl Alcohol ◽  
Calcium Hydroxide ◽  
Silica Fume ◽  
Rice Husk ◽  
Coarse Aggregate ◽  
Rice Husk Ash ◽  
Coconut Fiber ◽  
Conventional Concrete ◽  
Cement Powder ◽  
Durability Of Concrete

The biggest disadvantage of conventional concrete is brittle and hard, in addition, its durability is not high. The low durability of concrete is due to the presence of calcium hydroxide at the intersection of coarse aggregate particles and hard cement powder. The introduction of coconut fiber and polyvinyl alcohol (PVA) fibers into the concrete to improve the durability and flexibility of the concrete. In addition, the article also considers the effects of other additives such as rice husk ash, silica fume to study the performance of the structure as well as its durability when joining concrete mixes to create flexible concrete movable and more flexible than conventional concrete.

Effect of Flyash- Rice Husk Ash Blend in the Energy Efficient Geopolymer Tiles Using Industrial Wastes

2022 ◽  
Vol 1048 ◽  
pp. 403-411
Author(s):  
A. Chithambar Ganesh ◽  
K. Mukilan ◽  
B.P.V. Srikar ◽  
L.V.S. Teja ◽  
K.S.V. Prasad ◽  
...  
Keyword(s):  
Rice Husk ◽  
Energy Efficient ◽  
Building Materials ◽  
Rice Husk Ash ◽  
Research Work ◽  
Industrial Wastes ◽  
Modulus Of Rupture ◽  
Ceramic Tiles ◽  
Heat Curing ◽  
Intensive Approach

Infrastructural developments are inevitable for the developing countries and hence the production of sustainable building materials is promoted worldwide. Sustainable development in the vicinity of tiles is bewildered for more than a decade. Production of conventional tiles such as cement concrete tiles, clay tiles and ceramic tiles is energy intensive approach and levies lot of strain over the adjunct ecosystem. On the other hand there are serious problems related to the disposal of flyash, Rice Husk Ash throughout the world. An approach has been taken to synthesis tiles based on these industrial byproducts as the base materials through Geopolymer technology. In this work, Geopolymer mortar after heat curing is applied as tiles. In this work, Flyash is replaced by Rice Husk Ash in various proportions such as 20, 40, 60, 80 and 100 percent. Tests such as workability, flatness, straightness, perpendicularity, water absorption, modulus of rupture and abrasion are conducted and fair results are obtained. This research also portrays the effect of Rise Husk Ash addition over the flyash based Geopolymer binder in the utility as tiles. The findings of this research work encourages the development of energy efficient tiles using industrial wastes. Keywords: Geopolymer, Rice Husk Ash, Tiles

scholarly journals Crack Resistance and Mechanical Properties of Polyvinyl Alcohol Fiber-Reinforced Cement-Stabilized Macadam Base

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yi Zhao ◽  
Xuan Yang ◽  
Qingyu Zhang ◽  
Naixing Liang ◽  
Yangkai Xiang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyvinyl Alcohol ◽  
Crack Resistance ◽  
Fiber Length ◽  
Cement Content ◽  
Strength Test ◽  
Fiber Reinforced ◽  
Polyvinyl Alcohol Fiber ◽  
Reinforced Cement ◽  
Shrinkage Property

A series of tests were carried out to evaluate crack resistance and mechanical properties of polyvinyl alcohol fiber-reinforced cement-stabilized macadam, which is widely used as pavement base or subbase composite material. Three series of cement-stabilized macadam mixtures with cement content of 3.2%, 3.6%, and 4.0% were prepared by incorporating four various contents (0, 0.6, 0.9, and 1.2 kg/m3) and lengths (12, 18, 24, and 30 mm) of polyvinyl alcohol fiber. The optimum polyvinyl alcohol fiber content, fiber length, and cement content were determined based on the mechanical properties of cement-stabilized macadam mixtures. Then, unconfined compressive strength test, compressive resilience modulus test, splitting strength test, flexural tensile strength test, drying shrinkage test, and temperature shrinkage test were carried out in this study. The results show that polyvinyl alcohol fiber-reinforced cement-stabilized prepared by optimum proportions (cement 3.6%, fiber content 0.9 kg/m3, and fiber length 24 mm) has good crack resistance. The incorporation of polyvinyl alcohol fiber can effectively improve compressive strength and splitting strength, while its effect on CRM of cement-stabilized macadam is not remarkable. The anti-dry-shrinkage property and anti-temperature-shrinkage property of the specimens are also drastically improved due to the reinforcement effect of polyvinyl alcohol fiber. Moreover, the crack resistance index is proposed to evaluate the crack resistance of materials. The crack resistance of PVA fiber-reinforced cement-stabilized macadam prepared by optimum proportions is improved by 44.4%. Consequently, the mechanical properties and crack resistance of cement-stabilized macadam are obviously improved by adding polyvinyl alcohol fiber.

Cement stabilisation of recycled concrete aggregate modified with polyvinyl alcohol

2020 ◽  
pp. 1-9
Author(s):  
Teerasak Yaowarat ◽  
Suksun Horpibulsuk ◽  
Arul Arulrajah ◽  
Farshid Maghool ◽  
Mehdi Mirzababaei ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate
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