GGBFS Replacement for High Early Strength Concrete for

Wisconsin Highway Research Program Concrete

in unsatisfactory performance from primarily a scaling perspective. A 30% GGBFS cement replacement level will often be acceptable but the outcome depends on the specific constituents and curing methods used. 17. Key Words Portland cement concrete, ground granulated blast furnace slag, scaling, deicer distress, strength development, durability 18.

Learn More

PDF Section 704—Cement Concrete

The concrete design submitted for review is required to comply with the specified concrete class requirements, supported by slump, air content, and compressive strength test data according to ACI 211. The Department will accept concrete designs on the basis of the 7-day strength tests (Class High Early Strength

Learn More

Experimental Study on High Performance Concrete with

fume and Fly ash replacement between 30% to 45% led to a reduction in the compressive strength of hardened concrete. This study has shown that between 15 to 22.5% replacement levels, concrete will develop strength sufficient for construction purposes. Keywords: Durability, Fly Ash, High Performance Concrete,

Learn More

PDF A Study on Partial Replacement of Cement With Ggbs in Concrete

concluded in their project that ground granulated blast furnace slag is better replacement of cement than various other alternatives. The rateof strength gain in slag replaced concrete is slow in early stages but with proper curing the strength goes on increasing tremendously. The compressive strength decreases when the cement

Learn More

Durability Properties of Concrete with GGBS

A study conducted by Dhir et al. (1996) showed that the chloride resistance of ordinary portland cement concrete in increased with the addition of ground granulated blast furnace slag. The study was conducted by testing the chloride binding capacity of OPC concrete and replacement samples with GGBS in 33.3, 50,60 percentages.

Learn More

Laboratory Testing of Bridge Deck Mixes

The results indicated that mixes containing GGBFS (Mix 6, 7, and 9) had lower early 3-day modulus of elasticity (Approx. 3.6 million psi.) compared to the other mix designs (4.0 – 5.6 million psi.). The benefits of using GGBFS are that it provides concrete with a low early strength and low early

Learn More

PDF Volume 1, Issue 4, April Flexural Behavior of

replacement of cement with a water-binder ratio of 0.35 and 0.40 is adopted. To improve the workability of concrete, super high-strength and high-performance concrete [9]. The objectives of this study are to develop a SCC mix with GGBFS, to study the fresh and hardened properties of SCC strength of GGBFS series. At the early stage

Learn More

[email protected] - Canadian Society for Civil

High-performance concrete typically has a low water to cementing materials ratio (w/cm), high binder content and may contain high levels of supplementary cementitious materials. The effects of ground granulated blast furnace slag (GGBFS) and silica fume (SF) on the durability of HPC were investigated. In this study, HPC mixtures at 0.33 w/cm were made with two sources of blended cements

Learn More

PDF Effect of Ultra Fine Slag Replacement on Durability and

effect. In this work, the early mechanical strength development and durability properties of high strength concrete with UFGGBS is studied. Two mixes with 450 kg/m 3 and 520 kg/m 3 of Ordinary Portland Cement (OPC) and two more mixes of equivalent total cementitious materials with 30% UFGGBS replacement were

Learn More

PDF Isothermal water vapour permeability of concrete with

concrete properties. As described above, the effects of GGBFS, NP and LP are complementary. Generally, LP acceler-ates hydration and improves early strength, whereas GGBFS or NP improves strength and refines pores at later ages. Several studies have investigated ternary blended cement with GGBFS and LP, and concrete

Learn More

PDF High-performance Concretes- Behavior of Fresh Concrete

reduced the com pressive strength of concrete in which as much as 50% or more of the portland cement had been replaced by GGBFS, but that a mix with 30% replacement did not have a significant effect. However, they also noted that the reduction in heat of hydration of such high GGBFS mixes, with the associated reduction in

Learn More

Leave A Reply

Reply