scholarly journals Impact of marble waste as coarse aggregate on properties of lean cement concrete

2016 ◽  
Vol 4 ◽  
pp. 85-92 ◽  
Author(s):  
Sudarshan D. Kore ◽  
A.K. Vyas
Keyword(s):  
Coarse Aggregate ◽  
Cement Concrete ◽  
Marble Waste

Study on the Influence of Coarse Aggregate on the Pavement Performance of Road Cement Concrete

ICCTP 2009 ◽  
2009 ◽  
Author(s):  
Ai-qin Shen ◽  
Jian-ping Xiong ◽  
Jun-hui He ◽  
Tai-jun Liu
Keyword(s):  
Coarse Aggregate ◽  
Pavement Performance ◽  
Cement Concrete

scholarly journals Performance Evaluation of Concrete using Marble Mining Waste

2016 ◽  
Vol 11 (2) ◽  
pp. 53-66 ◽  
Author(s):  
Sudarshan Dattatraya Kore ◽  
A. K. Vyas
Keyword(s):  
Compressive Strength ◽  
Coarse Aggregate ◽  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Mining Waste ◽  
Partial Replacement ◽  
Infrastructure Development ◽  
The Impact ◽  
Marble Waste

Abstract A huge amount waste (approximately 60%) is generated during mining and processing in marble industries. Such waste can be best utilized in infrastructure development works. Coarse aggregate 75% by weight was replaced by aggregate obtained from marble mining waste. The impact of marble waste as a partial replacement for conventional coarse aggregate on the properties of concrete mixes such as workability, compressive strength, permeability, abrasion, etc. was evaluated. The test results revealed that the compressive strength was comparable to that of control concrete. Other properties such as workability of concrete increased, water absorption reduced by 17%, and resistance to abrasion was marginally increased by 2% as compared to that of control concrete. Ultrasonic pulse velocity and FTIR results show improvement in quality of concrete with crushed marble waste. From the TGA analysis it was confirmed that, aggregate produced from marble waste shows better performance under elevated temperature than that of conventional aggregates.

Proportion Design of Autoclaved Cement Concrete Based on High Strength

2011 ◽  
Vol 391-392 ◽  
pp. 161-164
Author(s):  
Tie Quan Ni ◽  
Chang Jun Ke ◽  
Li Zhang
Keyword(s):  
Coarse Aggregate ◽  
High Strength ◽  
Orthogonal Test ◽  
Mineral Admixture ◽  
Mix Design ◽  
Hydration Reaction ◽  
Cement Concrete ◽  
Binder Ratio ◽  
Four Levels ◽  
Water Binder Ratio

According to the particularity of the autoclaved cement concrete that partial aggregate could participate in hydration reaction in the process of autoclaving, the optimal gradation of coarse aggregate and the optimal slurry aggregate ratio is studied, and the effect of water reducing agent for fluidity of cement paste is also studied. The optimized mix design of autoclaved cement concrete based on high strength (compressive strength and flexural strength) is done by orthogonal test with four factors (water-binder ratio, type of mineral admixture, amount and sand ratio) and four levels.

scholarly journals Strength of Concrete containing Rubber as Partial Replacement of Coarse Aggregate

2020 ◽  
Vol 9 (1) ◽  
pp. 2061-2063
Keyword(s):  
Coarse Aggregate ◽  
Partial Replacement ◽  
Structural Elements ◽  
Structural Members ◽  
Rubberized Concrete ◽  
Cement Concrete ◽  
Coarse Aggregates ◽  
Strength Tests ◽  
Rubber Concrete ◽  
Rubber Aggregates

Effective Waste management is the need of the hour in the world. Solid wastes generated by the industries becomes hazardous as days passes by, used tyres are one such waste material that can affect our environment and people. Rubber tyre wastes can be used as partial replacement for the aggregates. In this study, rubber tyre wastes were used as coarse aggregates. And those rubber aggregates are used as partial replacement of coarse aggregates in the cement concrete (5%, 10%, 15%, 20%). The specimens were subjected to different strength tests as per the standards. It is found that the strength of the concrete is greatly reduced as the percentage of replacement of rubber aggregates is increased. Due to their low strength this type concrete cannot be used for load bearing or structural members. However rubberized concrete can be used for non –structural elements and in future a study can be made whether rubber concrete can be used for pavement blocks.

scholarly journals Pengujian Kuat Tekan Pada Beton Dengan Limbah Marmer Sebagai Subtitusi Agregat Kasar

2021 ◽  
Vol 6 (1) ◽  
pp. 61-69
Author(s):  
Agustin Dita Lestari
Keyword(s):  
Compression Test ◽  
Compression Strength ◽  
Coarse Aggregate ◽  
Concrete Materials ◽  
Marble Waste ◽  
Marble Industry

Pengurangan jumlah pecahan marmer akibat hasil produksi industri marmer dapat dilakukan dengan menggunakan pecahan tersebut untuk material yang ada di dalam beton. Penelitian dilakukan dengan  maksud agar hasil dari penggantian sebagian agregat kasar dengan limbah pecahan marmer yang ditinjau dari nilai kuat tekan beton dapat diketahui. Penelitian dirancang dengan variasi penggantian pecahan marmer sebesar 0%, 15%, 25%, dan 35%. Pada beton silinder yang memiliki ukuran 15 cm sebagai diameternya dan 30 cm sebagai tingginya, serta telah mencapai umur beton 7 hari, 14 hari, dan 28 hari akan diuji kuat tekannya. Besar kuat tekan yang paling tinggi ada pada variasi 25%, yaitu sebesar 33,22% pada umur beton 28 hari. Dibandingkan dengan nilai kuat tekan beton pada variasi 0% atau beton normal, pada variasi 25% mengalami kenaikan sebesar 4,02%.ABSTRACTReducing the number of aggregate marble waste as a result of the marble industry can be done by using this for concrete materials. This research was conducted with the effect of coarse aggregate substitution with marble waste on the compression strength value of concrete can be known. The research was committed to variations of marble aggregate substitution in 0%, 15%, 25%, and 35%. The compression test will be committed on cylindrical concrete, which has a diameter of 15 cm, a height of 30 at the age of 7, 14, and 28 days of concrete. The value of compression strength at the age of 28 days has the highest variation of 25%, equal to 33.22%. Compared with the compression strength value in variation 0% or average concrete, the variation of 25% has increased by 4.02%.

scholarly journals INVESTIGATION OF MECHANICAL PROPERTIES OF PAVER BLOCK MADE WITH EVA POLYMERS AND FLY ASH

2021 ◽  
Vol 9 (02) ◽  
pp. 694-702
Author(s):  
K. Hariharan ◽  
◽  
A. Krishna Moorthy ◽  
Keyword(s):  
Fly Ash ◽  
Coarse Aggregate ◽  
Block Design ◽  
Mix Design ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Curing Process ◽  
Cement Concrete ◽  
Ethyl Vinyl ◽  
Water Absorption Test

The aim of the project is to replace cement with fly ash and course aggregate with Ethyl Vinyl Acetate (EVA) in paver block. In this thesis paver block design is by using cement concrete mixture of mix design M30 which is composed of 10mm coarse aggregate cement and fine aggregate (M-sand).In this thesis the cement is partially replaced with fly ash and partial replacement of EVA with coarse aggregate in paver block at various level of 5, 10, 15, and 20 percentage of its weight. The paver block curing process is done for 7days and 28days. After curing it is checked for its compression strength, water absorption test and densitytest.

A Different Perspective for Investigation of Portland Cement Concrete Pavement Deterioration

1996 ◽  
Vol 1525 (1) ◽  
pp. 91-96 ◽  
Author(s):  
Vernon J. Marks ◽  
Wendell G. Dubberke
Keyword(s):  
Portland Cement ◽  
Coarse Aggregate ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Air Voids ◽  
Pavement Deterioration ◽  
Cement Concrete Pavement ◽  
The Matrix ◽  
History Of ◽  
Crushed Limestone

Many early Iowa portland cement concrete (PCC) pavements provided good performance without deterioration for more than 50 years. In the late 1950s, Iowa was faced with severe PCC pavement deterioration called D-cracking due to crushed limestone containing a bad pore system. Selective quarrying solved the problem. In 1990, cracking deterioration was identified on a 3-year-old US-20 pavement in central Iowa. The coarse aggregate was a crushed limestone with an excellent history of performance in PCC pavement. Examination of cores showed very few cracks through the coarse aggregate particles. The cracks were predominately confined to the matrix. A high-resolution, low-vacuum Hitachi scanning electron microscope with an energy dispersion detector was used to investigate the deterioration. Subsequent evaluation identified a very small concentration of silica gel (silicon) but substantial amounts of sulfur and aluminum (assumed to be ettringite) in the air voids. Some of these voids have cracks radiating from them leading to the conclusion that the ettringite-filled voids were centers of pressure causing the cracks. The ettringite in the voids, after being subjected to sodium chloride brine, initially swelled and then dissolved. The research has indicated that the premature deterioration may be due to ettringite and may have been mistakenly identified as alkali-silica reactivity.

scholarly journals Abrasion of cement-concrete and his contents investigation

2018 ◽  
Vol 230 ◽  
pp. 02033
Author(s):  
Sergii Tolmachov ◽  
Olena Belichenko ◽  
Dmitrii Tolmachov
Keyword(s):  
Wear Resistance ◽  
Cement Paste ◽  
Concrete Structure ◽  
Coarse Aggregate ◽  
Experimental Studies ◽  
Cement Stone ◽  
Hardened Cement ◽  
Cement Concrete ◽  
Number Of Cycles

The paper presents studies of abrasion of concretes made on various rubble: granite, syenite and limestone. The purpose of the research was to assess the wear of each element of the concrete structure and its contribution to the overall wear resistance of concrete. For this purpose, experimental studies were carried out on the wearability of coarse aggregate, cured cement paste, cement-sand mortar and concrete on different aggregates. Studies of abrasion were carried out on concretes hardened in various conditions: normal, air-dry and moisture-proof moisture (under the film). The hardening conditions of the samples play a major role in the change in abrasion and can lead to an increase in abrasion by several times. It is shown that the greatest abrasion is observed in the hardened cement test, as well as in cement-sand mortar. It is established that the wearability of a coarse aggregate from dense rocks increases with an increase in the attrition path (the number of cycles of abrasion). The abrasion of the moisture-proof moisture of the lower part of the samples from the hardened cement stone, mortar or concrete may be lower than the abrasion of the upper, not protected from evaporation of moisture.

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