rapid evaporation from freshly cast concrete and the gulf

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Rapid evaporation from freshly cast concrete and the Gulf ...

2001-2-1  1.. IntroductionThe rapid evaporation of surface water from concrete placed in dry environments leads not only to a decreased degree of hydration in the surface or ‘cure affected zone’ , but can also lead to shrinkage and accompanying shrinkage stresses in the freshly placed concrete.Regardless of the ultimate strength of the material, during the first few hours after batching,

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Rapid evaporation from freshly cast concrete and the Gulf ...

Rapid evaporation from freshly cast concrete and the Gulf environment ... In hot dry climates, such as exist in the Arabian Gulf region, plastic shrinkage cracking can develop when the rate of evaporation exceeds the rate at which bleed water rises to the concrete surface. Furthermore, with or without plastic shrinkage cracking, surface drying ...

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Construction and Building Materials Vol 15, Issue 1 ...

select article Rapid evaporation from freshly cast concrete and the Gulf environment

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DeepDyve - Unlimited Access to Peer-Reviewed Journals

DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Water evaporation from freshly placed concrete surfaces in ...

1989-5-1  For the specimens cast in the morning, noon or early afternoon time and kept in open air, the maximum rate of evaporation exceeded the limiting value of 1.0 kg/m 2 /hr, from view point of susceptibility to plastic shrinkage cracking.

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Kenneth C. Hover's research works Cornell University ...

Rapid evaporation from freshly cast concrete and the Gulf environment. Article. Feb 2001; Manal Al-Fadhala. Kenneth C Hover. In hot dry climates, such as exist in the Arabian Gulf region, plastic ...

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Water evaporation from freshly placed concrete surfaces in ...

This study indicates that besides weather components, the time of casting, difference of concrete and air temperatures and moisture condition of the concrete surface influence the rate of evaporation of water from freshly placed concrete surfaces. For the specimens cast in the morning, noon or early afternoon time and kept in open air, the ...

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Evaporation of Water from Fresh Mortar and Concrete at ...

The variables studied were air temperature, initial mortar and concrete temperature, wind speed, relative humidity, type of cement, and water content (water-cement ratio). The results show that in hot, humid climate evaporation is 3 1/2 times lower than in a hot, moderate climate and 7% times lower than in

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Evaporation of Water from Fresh Mortar and Concrete at ...

DOI: 10.14359/10700 Corpus ID: 137945982. Evaporation of Water from Fresh Mortar and Concrete at Different Environmental Conditions @inproceedings{Berhane1984EvaporationOW, title={Evaporation of Water from Fresh Mortar and Concrete at Different Environmental Conditions}, author={Z.

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Study on evaporation rate of concrete surface during ...

Evaporation rate from the surface of freshly cast concrete in plastic stage under high temperature and low humidity environment was studied with research variables including wind speed and water ...

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Water evaporation from freshly placed concrete surfaces in ...

1989-5-1  How- ever, the method will underestimate the rate of evaporation in the case of freshly set concrete, without free moisture on the surface, kept in open air. Furthermore, the method will over- estimate the initial rate of evaporation from the surfaces under shade and from the surfaces cast in late afternoon or at night.

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Kenneth C. Hover's research works Cornell University ...

Rapid evaporation from freshly cast concrete and the Gulf environment. Article. Feb 2001; Manal Al-Fadhala. Kenneth C Hover. In hot dry climates, such as exist in the Arabian Gulf region, plastic ...

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Evaporation of water from concrete surfaces

Evaporation rate from the surface of freshly cast concrete in plastic stage under high temperature and low humidity environment was studied with research variables including wind speed and water ...

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4 Concreting Problems Caused By Hot Weather Davis Concrete

Hot weather causes rapid evaporation from the freshly mixed concrete and surface drying, which may even lead to surface shrinkage. Water is essential when pouring concrete, so to prevent quick water loss, it is advisable to wet down dry substrates before the pouring process.

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Sika® Film Evaporation Retarders

2021-7-14  Evaporation Control and Finishing Aid liquid concentrate. Sika® Film is a 1-part liquid concentrate which controls the moisture evaporation from the freshly cast concrete flatwork surface in addition to functioning as a finishing aid. Eliminates the need to add water to low slump concrete or spraying water on the concrete surface to aid finishing.

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MasterKure ER 50 Concrete Evaporation Reducer, Concentrate ...

MasterKure ER 50 evaporation reducer reduces surface moisture evaporation from freshly placed concrete, especially in rapid drying conditions, such as high concrete surface or ambient temperatures, low humidity, high winds, direct sunlight, or work in

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Hot Weather Concreting Michigan Concrete

2021-7-31  When the evaporation rate exceeds 0.20 lbs/ft2/hr, the recommended precautions become mandatory. PLASTIC SHRINKAGE CRACKING. Plastic shrinkage cracks are defined as a network of discontinuous cracks that appear on the surface of a freshly cast concrete slab during or

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Hot weather and concrete - Concrete Colour Systems ...

2020-11-2  Most of the problems, as a result of hot weather, relate to the increased rate of cement hydration at higher temperatures and the increased rate of evaporation of moisture from freshly laid concrete. Setting time; As temperatures increase, there is less time to place, compact and finish the new concrete due to moisture evaporation.

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Film- Evaporation Retarders - SIKA Products Order Buy ...

Sika Film is a 1-part liquid which controls the moisture evaporation from the freshly cast concrete surface and functioning as a finishing aid.

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C172/C172M Sampling Freshly Mixed Concrete Flashcards ...

C172/C172M Sampling Freshly Mixed Concrete Two When sampling from a stationary mixer, the batch must be sampled at _______ or more regularly spaced intervals during discharge of

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Drying induced moisture losses from mortar to the ...

2007-5-4  Al-Fadhala M, Hover K (2001) Rapid evaporation from freshly cast concrete and the Gulf environment. Construct Build Mater 15:1–7. Article Google Scholar 14. ACI (2001) Guide to curing concrete. ACI Committee Reports, A. C. Institute, ed. Download references

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Sika® Film Concrete Essentials

2021-6-23  Sika® Film is a 1-part liquid which controls the moisture evaporation from the freshly cast concrete flatwork surface in addition to functioning as a finishing aid.

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CONCRETE DURABILITY - THE ARABIAN GULF EXPERIENCE

2011-4-6  Kev Words: Arabian Gulf, Coated Steel, Concrete durability, Concrete Protection, Hot and Humid Environment. 1.0 INTRODUCTION Portland cement concrete has been used since several decades to build the infrastructure necessary for human development. The varying shapes and sizes of structures, that the

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Hot Weather Concrete - IRMCA

Placing concrete in hot weather might mean cooling materials or placing concrete at nighttime to avoid daytime extremes. SUCCESSFUL HOT WEATHER CONCRETING Throughout summer, difficulties in mixing, placing and curing concrete often arise. High ambient/concrete temperatures, low relative humidity, and moderately high wind velocities contribute to rapid evaporation

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(PDF) Plastic Shrinkage Cracking in Concrete: Research in ...

The main reason behind the phenomenon is believed to be rapid and excessive surface water evaporation of the concrete element in the plastic stage which in turn leads to the so-called plastic or ...

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PRODUCT DATA SHEET Sika® Film

2021-8-17  ture evaporation from the freshly cast concrete flat-work surface in addition to functioning as a finishing aid. USES All applications where a superior finish is required on concrete flatwork Protects concrete from the effects of excessive mois-ture loss in rapid drying conditions Packaging Total Chloride Ion Content APPLICATION INFORMATION

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Transport and Reaction Processes in Concrete at High ...

Evaporation rate from the surface of freshly cast concrete in plastic stage under high temperature and low humidity environment was studied with research variables including wind speed and water ...

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What precautions should be used when pouring concrete in ...

2018-7-9  In a hot weather like the one in the summer of the gulf region in middle east, sometime an addition of ice blocks in order to satisfactory moisture content and temperature in freshly cast concrete ...

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Film- Evaporation Retarders - SIKA Products Order Buy ...

Sika Film is a 1-part liquid which controls the moisture evaporation from the freshly cast concrete surface and functioning as a finishing aid.

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Types of Cracks in Fresh Concrete Causes and Remedies

2020-8-9  Concrete thus available is said to be in plastic state. Fresh concrete, also known as plastic concrete, is a freshly mixed material flexible enough which can be molded into any shape. The relative quantities of aggregates, cement and water are mixed together which controls the properties of concrete in the wet state as well as in the hardened ...

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