Research Review Report on Effect of Specimen Size on Shear Strength of Soil in Laboratory Test

EasyChair Preprint 9600

Abstract

This technical review report provides insight view of “Mass Concrete” and “Roller compacted concrete (RCC)” as an alternate method to minimize the use of cement and reduce green house gas emission in the atmosphere. All concrete generates heat as it cures. For thicker sections, specifically in dams, bridges, retaining wall, pier, large foundation etc., heat cannot escape as quickly as it is generated. The trapped heat increases the temperature of the concrete and then become a vicious cycle. Due to this two main problem arises i.e., maximum internal temperature & temperature difference developed between the interior and the surface. This generates thermal stresses and leads to thermal cracking. Exceeding specified limits puts concrete at increased risk of severe cracking and therefore temperature monitoring is needed at key places to control thermal cracking, so that temperature difference are within specified limits. Thermal control methods discussed in this report include optimal concrete mix design, insulation, concrete cooling before & after placement and use of smaller placements.

Multipurpose dams for developing country are a great deal, due to a single investment boosting to economic and domestic benefits for the population. When dam is constructed with concrete, it uses large amount of cement. This leads to high cost and a negative impact on the environment due to CO₂ emissions. Therefore alternate method like Roller Compacted Concrete (RCC) reduces the cost as well as minimizes the use of cement. Over the past decade improvement in construction method with advanced machineries has enhanced the final product while maintaining the speed of construction. Today, RCC is used when strength, durability, economy and speed of construction are of primary needs. RCC has gain recognition as a competitive material for building new construction and rehabilitating existing dams along with other types of structures.

Keyphrases: Mass concrete, Roller Compacted Concrete, thermal control

@booklet{EasyChair:9600,
  author    = {Maurya Suresh Seopal},
  title     = {Research Review Report on Effect of Specimen Size on Shear Strength of Soil in Laboratory Test},
  howpublished = {EasyChair Preprint 9600},
  year      = {EasyChair, 2023}}