equipment of the slag alkali cement

Characterisation of temporal variations of alkali-activated

Reflecting the size of China’s steel industry ground granulated blast-furnace slag GGBS has emerged as a main supplementary cementitious material SCM used both as a partial replacement for PC to improve the performance of conventional concrete and also to manufacture alkali-activated slag AAS cement-based materials .

Alkali Silica Reaction - Slag Cement

Slag cement contains a small amount of alkalis.Typically the amount of alkali is similar to that of low- to-moderate-alkali portland cement for example 0.5 to 0.7% Na 2 O equivalent . Some guide specifi ions and standard practices such as AASHTO PP65-11 5 allow the option of limiting the alkali content of concrete when reactive

The Mechanical Properties of Alkali-Activated Slag-Silica

The mixing method is the investigation of the characteristics of alkali-activated cement paste AACP with slag and silica fume SF of 1: 1. The basic mixing method is ASTM C305 which is defined as 1st-cycle. There are three factors considered in this experiment; i the addition of mixing time 2nd-cycle ii the concentration of activator depending on the amount of mixing water and iii

Slag Cement - an overview ScienceDirect Topics

Slag Cement. Slag cements are resistant to sea water only with an addition of >60% slag if the OPC is a non-marine cement.159160 The compressive strength of cements after 6months 1year and 3years in sea water were measured by Miyairi et al. From: Lea& 39;s Chemistry of Cement and Concrete Fifth Edition 2019. Related terms: Blast Furnace Slag

Kinetics of Alkaline Activation of Slag and Fly ash-Slag Systems

of ordinary Portland cement. The kinetics of alkali activation is highly dependent on the chemical 2.4: Reaction mechanism of alkali activated slag F Jimenez

Granulated Blast Furnace Slag - an overview ScienceDirect

The reduction of concrete compressive strength was more substantial in the MgSO 4 solution for both types of binders: after 12 months in the MgSO 4 solution the strength decrease was up to 37% for Portland cement concrete and 23% for alkali-activated slag samples. Structural characterization of mortars from the surface of alkali-activated slag

What is Alkali-Activated Slag? NIUMAG Corporation

Alkali-Activated Slag，AAS is a hydraulic-cementing material Slag and fly ash have potential activity with dry granulated blast furnace Slag as the main material with appropriate amount of sili e cement clinker a small amount of dihydrate gypsum and an appropriate amount of Alkali activator consisting of 80% 85% Slag 5% 10% Alkali activator and cement clinker.

A Review of Durability and Strength Characteristics of Alkali

Alkali-activated slag AAS is a promising alternative to ordinary Portland cement OPC as sole binder for reinforced concrete structures. OPC is reportedly responsible for over 5% of the global CO 2 emission. In addition slag is an industrial by-product