HEAT RESISTING, HIGH STRENGTH CONCRETE, AND PRODUCTION METHOD THEREFORPROBLEM TO BE SOLVED: To obtain concrete which has high strengths even without undergoing the addition of reinforcing fiber, and has no reduction of strengths even in a high temperature environment.YAMAMOTO TAKESHI...
The shrinkage and cracking risk of heat-treated ultra-high performance concrete (UHPC) can be mitigated by using the superabsorbent polymer (SAP)-based internal curing method. The heat treatment (HT) accelerates the hydration reaction and resulting self-desiccation of UHPC; consequently, the UHPC ex...
Ultra-high performance concrete (UHPC) and ultra-high performance fiber reinforced concrete (UHP-FRC) were introduced in the mid 1990s. Special treatment, such as heat curing, pressure and/or extensive vibration, is often required in order to achieve compressive strengths in excess of 150 MPa (...
Why shall be used concrete cooling system? On the process of concrete condensation and rigidification, hydrated cement produced large amount of hydration heat, when heat accumulated, the temperature increase inside the concrete will become rapider, the concrete structure is thick and large...
The purpose of this study is to investigate the flexural behaviour of heat damaged reinforced concrete (RC) slab by using High Strength Fibre Reinforced Concrete (HSFRC) as repair materials. The slab samples consist of twelve one-way columns heated at 200 ° C, 400 ° C and 600 ° C for...
Damage to the concrete structure is to be minimized by a suitable choice of maximum treatment temperature, heating and cooling rate. This leads to temperature durations of more than 24 h, which is not suitable for a serial production of precast concrete parts. For a minimally short heat ...
Then, BA was ground to have high fineness and substituted OPC at 50, 65, and 80 wt% of binder to cast high volume ground bagasse ash (HVGBA) concrete. Properties of HVGBA concretes namely, heat evolution, compressive strength, splitting tensile strength, elastic modulus, and drying shrinkage...
High-strength concrete Adiabatic temperature rise Heat of hydration Hydration parameters Thermal stress Early-age thermal cracking 1. Introduction Over the past few years, HSC has been used not only in bridge superstructures but also in substructures (such as piers and footings) of bridge projects in...
In order to know the characteristic of heat of hydration on high strength concrete and to prepare for temperature control on structures with the same material, this paper combines field measurement method with theoretical analysis method, contrasts high strength concrete with common concrete on adiabatic...
The effect of alkali concentration and sodium silicate modulus on the properties of alkali-activated slag concrete J. Adv. Concr. Technol., 16 (7) (2018), pp. 293-305, 10.3151/jact.16.293 View in ScopusGoogle Scholar Tang et al., 2004 X. Tang, Y. Liu, Z. Chang, He Qin, G. Liu...