scholarly journals A REVIEW OF STUDY OF STRENGTH AND DURABILITY ON CEMENT WITH ADDITION OF CERAMIC WASTE AND MICRO SILICA

2021 ◽  
Vol 8 (1) ◽  
pp. 49-52
Author(s):  
Dharmesh Kumar Vishwakarma ◽  
Harsh Gupta
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Absorption Rate ◽  
Sulfate Attack ◽  
Silica Sand ◽  
Absorption Test ◽  
Strength Tests ◽  
Strength And Durability ◽  
Micro Silica ◽  
Recycled Material

Silica sand smaller than 70 microns can be used as a partial substitute for cement. This study partially demonstrated the properties of cement made of ceramic scrap and micro-silica instead of sand and cement. The effect of this recycled material was investigated by compressive strength tests and durability tests such as water absorption rate, absorption test and sulfate attack test.

scholarly journals Examining the Impact of Micro Silica Gel Additive on the Compressive Strength and Water Absorption of Roller Compacted Concrete Pavement

2016 ◽  
Vol 10 (5) ◽  
pp. 194
Author(s):  
Rouholla Barati ◽  
Seyed Ali Sahaf ◽  
Mehdi Jamshidi ◽  
Alireza Razazpor
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Silica Gel ◽  
Concrete Pavement ◽  
Mix Design ◽  
Concrete Pavements ◽  
Roller Compacted Concrete ◽  
Strength And Durability ◽  
Micro Silica ◽  
The Impact

<p>Roller compacted concrete pavement (RCCP) is one of the different types of concrete pavements which is considered as a new developing technology due to its rapid installation. However, RCCP is difficult to install in high thickness; therefore, it is essential to reduce the thickness of pavement while maintaining strength. Flexural strength and fatigue resistance are the most important parameters effective on design of thick pavements. These parameters are directly related to uniaxial compressive strength of concrete. Hence, this study determines and evaluates the compressive strength of 7-day and 28-day specimens. Given the durability of concrete pavements, particularly their penetrability against water, corrosive materials and minerals, the most important parameter is to reduce water absorption of RCCP. In order to increase strength and reduce water absorption of RCCP, different additives as well as a proper mix design can be significantly effective. This study examines the effect of various mix designs and different percentages of micro silica gel on RCCP. The suggested mix design is continuous aggregation and addition of 7% micro silica gel, which increases strength and durability of RCCP.</p>

scholarly journals Evaluation of Cassava Effluent as Organic Admixture in Concrete Production for Farm Structures

2020 ◽  
pp. 271-282
Author(s):  
Ovie Isaac AKPOKODJE ◽  
Goodnews Goodman AGBI ◽  
Hilary UGURU
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Fresh Water ◽  
Absorption Rate ◽  
International Standards ◽  
Partial Replacement ◽  
Strength Development ◽  
Water Absorption Rate ◽  
Concrete Production ◽  
Farm Structures

This paper evaluated the influence of cassava effluent on the compressive strength of concrete for farm structures. Three sets of concrete cubes were produced with a concrete mix ratio of 1:2:4 (C 15) and a water to cement ratio (w c-1) of 0.5. The 1st set was produced with 100% fresh water (tap water). The 2nd set was produced with 75% partial replacement of the fresh water with fresh cassava effluent, while the 3rd set was produced with 75% partial replacement of the fresh water with old cassava effluent. The density, water absorption rate and compressive strength of the concrete cubes was tested in accordance with ASTM International standards, at the end of 7, 14, 21, 28 and 56 curing days. The results revealed that, the cassava effluent slightly increased the cubes density; but reduced their water absorption rate. The study further showed that, concrete produced with fresh cassava effluent, developed the highest compressive strength (29.57 MPa) at the end of the 56th curing day. In contrast, concrete produced with old cassava effluent developed the lowest compressive strength (24.43 MPa) at day 56, which was lower than the compressive strength of 27.18 MPa developed by the concrete produced with fresh water (also at day 56). In addition, the cassava effluent retarded the initial rate of strength development, as such, increasing its prospect as an organic concrete admixture. This study will be helpful in mitigating the harmful effects of cassava effluent in the environment, since it can be utilized in concrete production.

scholarly journals Evaluation of Relationship between Water Absorption and Durability of Concrete Materials

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
S. P. Zhang ◽  
L. Zong
Keyword(s):  
Compressive Strength ◽  
Surface Water ◽  
Water Absorption ◽  
Chloride Ion ◽  
Sulfate Attack ◽  
Ion Diffusion ◽  
Curing Conditions ◽  
Concrete Materials ◽  
Chloride Ion Diffusion ◽  
Durability Of Concrete

Environment has significant effects on the water absorption of concrete materials. This paper presents an experimental study of the influence of water absorption on the durability of concrete materials. A detailed analysis is also presented in order to establish useful relationship between them. Concrete specimens of different water absorption were prepared through different curing conditions, and results indicated that curing condition can significantly affect the surface water absorption. SEM photos also showed that different curing conditions caused different microstructure. After 28-days curing, compressive strength, permeability, sulfate attack, and chloride ion diffusion of concrete samples were investigated. As a result, both of surface sorptivity and internal sorptivity have no clear relationship with compressive strength. Results obtained also showed that only surface water absorption related to the performance of concrete including permeability, sulfate attack, and chloride ion diffusion. In addition, both impermeability and resistance to sulfate attack were linearly associated with surface sorptivity, and both correlation coefficients were not less than 0.9. Furthermore, chloride ion diffusion coefficient has exponent relation to surface water absorption with higher correlation coefficient. However, no apparent relationship was found between internal water absorption and durability like impermeability, resistance to sulfate attack, and chloride ion diffusion.

scholarly journals Characterization of Slag Cement Mortar Containing Nonthermally Treated Dried Red Mud

2019 ◽  
Vol 9 (12) ◽  
pp. 2510 ◽  
Author(s):  
Gyeongcheol Choe ◽  
Sukpyo Kang ◽  
Hyeju Kang
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Water Content ◽  
Red Mud ◽  
Absorption Rate ◽  
Cement Mortar ◽  
Slag Cement ◽  
X Ray ◽  
Water Absorption Rate ◽  
High Calcium

In this study, a method was suggested to produce dried powder from red mud (RM) sludge with 40%–60% water content without heating. The RM sludge is discharged from the Bayer process, which is used to produce alumina from bauxite ores. Nonthermally treated RM (NTRM) powder was produced by mixing RM sludge (50%), paper sludge ash (PSA, 35%), and high-calcium fly ash (HCFA, 15%). The physicochemical properties of NTRM were investigated by analyzing its water content, X-ray fluorescence spectra, X-ray diffraction patterns, and particle size. Moreover, to examine the applicability of NTRM as a construction material, slag cement mortar in which 20 wt% of the binder was replaced with NTRM was produced, and the compressive strength, porosity, and water absorption rate of the mortar were evaluated. Results indicated that NTRM of acceptable quality was produced when the water content in RM sludge decreased and CaO contained in PSA and HCFA reacted with moisture and formed portlandite. The NTRM-mixed mortar requires further examination in terms of durability because of the increased capillary voids and high water absorption rate, but its compressive strength is sufficient to enable its use in sidewalks, bike roads, and parking lots.

Strength and Water Absorption Rate of Concrete Made from Palm Oil Fuel Ash

2017 ◽  
Vol 889 ◽  
pp. 261-264 ◽  
Author(s):  
Norpadzlihatun Manap ◽  
Nor Izzah Muhamad ◽  
Kavitha Sandirasegaran
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Palm Oil ◽  
Absorption Rate ◽  
Conventional Concrete ◽  
Palm Oil Fuel Ash ◽  
Water Absorption Rate ◽  
Fuel Ash ◽  
Palm Oil Mill ◽  
Oil Fuel

Concrete is one of the most important materials for construction industry. The material in the mixture of concrete includes cement, sand and coarse aggregate. Production of cement causes the air pollution from the emission of carbon dioxide to the air. This research studies the replacement of cement with palm oil fuel ash (POFA) in the concrete mixture. The objective of this research is to investigate the compressive strength of concrete and water absorption rate of concrete made from POFA and to compare the strength and absorption rate between conventional concrete and concrete made from POFA. This is to indicate whether the compressive strength and absorption rate are equivalent to the strength of conventional concrete. The methodology used in this research is experimental method and the palm oil fuel ash was taken from palm oil mill in Cha’ah, Johor, Malaysia. The results of this research are the specimens which contain 20% POFA has a compressive strength and water absorption rate comparable to conventional concrete.

Effect of Silica Sol on the Properties of Unfired Mullite Rollers

2010 ◽  
Vol 97-101 ◽  
pp. 526-529
Author(s):  
Kai Huang ◽  
Yuan Bing Li ◽  
Bing Feng ◽  
Qing Shun Wu ◽  
Li Yang ◽  
...  
Keyword(s):  
Water Absorption ◽  
Bulk Density ◽  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Absorption Rate ◽  
Silica Sol ◽  
Shock Resistance ◽  
Α Al2o3 ◽  
Micro Silica ◽  
White Fused Alumina

An unfired mullite roller was produced by using mullite roller waste, white fused alumina, α-Al2O3, clay and micro silica, meanwhile silica sol was used to partially substitute for micro silica as the SiO2 source. The effect of silica sol on the properties of unfired mullite roller was investigated. The results showed that the microstructure and properties of the unfired mullite roller prepared with silica sol were improved. With the increase of silica sol, the COMR, bulk density and thermal shock resistance increased, and the water absorption rate decreased. When silica sol was 8w/t%, treated temperature was 1200°C, the CMOR of unfired mullite roller was more than 50MPa.

scholarly journals Fresh, Mechanical and Absorption Characteristics of Self-Consolidating Concretes Including Low Volume Waste PET Granules

2017 ◽  
Vol 3 (10) ◽  
pp. 809 ◽  
Author(s):  
Kasım Mermerdaş ◽  
Dia Eddin Nassani ◽  
Mehmet Sakin
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
High Performance ◽  
Flow Time ◽  
Pet Bottles ◽  
Fine Aggregates ◽  
Strength Tests ◽  
Funnel Flow ◽  
Limiting Value ◽  
Absorption Characteristics

This study evaluates the effect of waste polyethylene terephthalate (PET) granules on the fresh, mechanical and absorption characteristics of self-consolidating concretes (SCCs). Fine aggregates were replaced with different percentages (from 0% to 8%) of PET granules obtained by crushing waste PET bottles. The fresh properties of SCC containing PET granules were determined using slump flow and V-funnel flow time tests. Mechanical properties (compressive strength and splitting tensile strength tests) and absorption properties (sorptivity and water absorption tests) were evaluated. The results indicated that utilization of waste PET granules in production of SCC could be an effective way for recycling purpose. The maximum amount of PET replacement should be limited to 5%. Exceeding 5% of PET content may result in an increase of V-funnel flow time to overpass the limiting value, decrease in compressive strength, reduction in sorptivity and increase in the water absorption. The production of high performance SCC containing 5% PET granules satisfies all the requirements for SCC with satisfactory outputs.

scholarly journals Performance of Modified Rubber Aggregate Concrete with GGBS and Silica

2019 ◽  
Vol 9 (2) ◽  
pp. 2438-2441
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Coarse Aggregate ◽  
Research Programme ◽  
Conventional Concrete ◽  
Aggregate Concrete ◽  
Waste Rubber ◽  
Strength And Durability ◽  
Micro Silica

Transfer of tyre rubber suit a tremendous difficulty in India step by step. Analysts are attempting to utilize waste rubber in structural building venture from numerous days back. When coarse aggregate was replaced with 20% chipped rubber it was found that the optimum replacement is5% but still there is a deficit in some strength from conventional concrete. This research programme tries to minimise this gap by adding extra 5% micro silica of the weight of cement and also by replacing 40% of cement by GGBS. Here cubes, cylinders, and prisms were casted to test compressive strength, tensile strength, flexural strength, and durability against heat and were observed after 28 days and 56 days

scholarly journals PENGARUH LIMBAH PLASTIK JENIS PET DAN PP DENGAN TANAH DIATOMAE SEBAGAI SUBTITUSI AGREGAT HALUS DALAM PAVING BLOCK

Jurnal PenSil ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 166-176
Author(s):  
Melinda Putri Haryani ◽  
Kusno Adi Sambowo ◽  
Anisah
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Sodium Sulfate ◽  
Test Object ◽  
Diatomaceous Earth ◽  
Plastic Waste ◽  
Resistance Test ◽  
Fine Aggregate ◽  
Absorption Test ◽  
Water Absorption Test

Abstrak Penelitian ini bertujuan untuk mengetahui pengaruh dari pemanfaatan limbah plastik PET, limbah plastik PP dan tanah diatomae sebagai bahan pengganti pasir sehingga dapat diketahui mutu yang mampu dicapai dan kesesuaiannya dengan SNI 03-0691-1996 mengenai paving block secara fisis maupun mekanis. Penelitian ini menggunakan metode eksperimen dengan benda uji paving block menggunakan limbah plastik PET, limbah plastik PP dan tanah diatomae sebagai bahan pengganti pasir dalam populasinya terdapat 5 presentase yaitu 0% (control), 5%, 10%, 15%, dan 20% dengan jumlah benda uji setiap variasi adalah 14 buah. Benda uji pada penelitian ini berukuran 210 mm x 105 mm x 80 mm berbentuk balok yang dicetak menggunakan mesin press vibrator. Setelah selesai pencetakan, benda uji dilakukan perawatan (curing) di dalam bak air selama ±28 hari. Kemudian dilakukan pengujian untuk mengetahui mutu benda uji sesuai dengan SNI 03-0691-1996 mengenai paving block, berupa uji tampak dan ukuran, uji kuat tekan, uji daya serap air, dan uji ketahanan terhadap Natrium Sulfat. Berdasarkan penelitian yang telah dilakukan, diperoleh hasil kuat tekan pada substitusi agregat halus buatan dengan variasi 0% (control), 5%, 10%, 15%, dan 20% berturut-turut 17,708 Mpa (Mutu B), 18,479 Mpa (Mutu B), 18,722 Mpa (Mutu B), 17,936 Mpa (Mutu B), dan 14,749 Mpa (Mutu C). Pada uji daya serap air hanya paving block dengan variasi 20% yang masuk ke dalam mutu C, kemudian pada pengujian ketahanan aus seluruh benda uji masuk ke dalam mutu A. Sementara untuk uji ketahanan terhadap Natrium Sulfat, hanya variasi 0% dan 5% yang tidak lolos uji. Dari hasil pengujian menunjukan bahwa penggunaan limbah plastik PET, limbah plastik PP, dan tanah diatomae sebagai agregat halus buatan yang disubstitusi ke agregat halus alami pada variasi 10% mampu mencapai mutu B yang digunakan sebagai peralatan parkir. Kata kunci: Limbah Plastik PET, Limbah Plastik PP, Tanah Diatomae, Agregat Halus, Paving Block, SNI 03-0691-1996   Abstract This study aims to determine the effect of the utilization of PET plastic waste, PP plastic waste and diatomaceous earth as a substitute for sand so that the quality that can be achieved and its conformity with SNI 03-0691-1996 regarding paving blocks physically and mechanically can be determined. This study uses an experimental method with paving block specimens using plastic as a substitute for sand in the population there are 5 percentages, namely 0% (control), 5%, 10%, 15% and 20% with the number of specimens for each variation is 14 pieces. The test object in this study measuring 210 mm x 105 mm x 80 mm in the form of a block printed using a vibrator press machine. After completion of printing, the specimens were treated (cured) in a water bath for ±28 days. Then a test was carried out to determine the quality of the test object in accordance with SNI 03-0691-1996 regarding paving blocks, in the form of appearance and size test, compressive strength test, water absorption test, and resistance test to Sodium Sulfate. Based on the research that has been done, the results of the compressive strength of artificial fine aggregate substitution with variations of 0% (control), 5%, 10%, 15% and 20% respectively 17.708 Mpa (Quality B), 18.479 Mpa (Quality B) , 18,722 Mpa (Quality B), 17,936 Mpa (Quality B), and 14,749 Mpa (Quality C). In the water absorption test, only paving blocks with a variation of 20% were categorized as C quality, then all the paving block are included in quality A in wear resistance testing. Meanwhile, for the sodium sulfate resistance test, only 0% and 5% variations did not pass the test. The test results show that the use of PET plastic waste, PP plastic waste, and diatomaceous earth as artificial fine aggregate which is substituted for natural fine aggregate at a variation of 10% is able to achieve B quality which is used as parking equipment. Keywords: Waste PET Plastic, PP Plastic Waste, Diatomaceous Earth, Fine Aggregate, Paving Block, SNI 03-0691-1996

scholarly journals Effect of Wollastonite Mineral on Fresh and Mechanical Properties of Concrete

2021 ◽  
Vol 9 (10) ◽  
pp. 496-500
Author(s):  
Aman Sharma
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Silica Sand ◽  
Concrete Technology ◽  
Split Tensile Strength ◽  
Durability Properties ◽  
Good Improvement ◽  
Strength And Durability ◽  
Made In

Abstract: The wollastonite mineral are the main source of solid-state reaction from limestone and silica sand. Wollastonite is used as replacement of both sand and cement depending on size of wollastonite. Present study will provide better understanding of mechanical and durability properties of concrete in which cement is partially replaced with wollastonite. The present paper would contribute to the efforts being made in the field of concrete technology towards development of concretes possessing good strength and durability properties along with economic and ecological advantage. Based on the study, valuable advice will be given for concrete structures. It was found that with increase in amount of wollastonite, in concrete with workability of concrete decreases. It was also found that initial day’s strength is less for wollastonite concrete compare to control mix, but as the age increases they show good improvement in strength due to pozzalanic reaction. Optimum dosage is observed to be 15% WP which shows more strength compared to control mix. Keywords: wollastonite mineral, workability, compressive strength, split tensile strength.

Sign in / Sign up

Export Citation Format

Share Document