Concrete Hydration

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ENGINEERS TASKSCuring time/compoundA. Burlap Cloth made from Jute or KenafB. Liquid-Membrane-Forming Compounds, White Pigmented, Type 2C. Liquid-Membrane-FormingCompounds,White Pigmented,Type 2, ClassBD. Geotextile FabricThis is during the hardening stage of hydration which lasts up to 4 hrs. The hydrationgenerates significant heat and the mixture begins to set and harden and gain strength. Stressalso begins to be a form.
ENGINEERS TASKSSaw JointsJoints in concrete pavement shall be of the design specified andshall be constructed at the spacings and locations specified. Theramp joints beyond the ramp taper shall have the same spacingsequence as the mainline. The Contractor shall establish jointlocations. This is during the cooling stage of the hydration processand stress will develop to strengthen if not relieved. The engineersjob is to make sure that the right joints are sawed in to the relievestress and to control cracking of any kind.
Page 2: OUTLINEHistory…………………
Page 7 and 8: MixingWithin minutes of mixing ceme
Page 9 and 10: HARDENINGThis stage is dominated by
Page 11 and 12: DENSIFICATIONThis stage is critical
Page 13 and 14: ENGINEERS TASKSEnsure precise mixin
Page 15: ENGINEERS TASKSTransportationFinish
Page 19 and 20: HOT EFFECTSWithout the proper care,
Page 21 and 22: RAIN EFFECTSChallenges‣Before fin
Page 23 and 24: EFFECTS OF CHEMICALADMIXTURESChemic

Concrete Hydration

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