An extrusion process especially designed for extrusion of pipes made from fiber reinforced cementitious materials has been developed at Department of Structural Engineering and Materials at the Technical University of Denmark. Engineered Cementitious Composite (ECC) materials have been developed in recent years at Department of Civil and Envirionmental Engineering, University of Michigan. These...

this paper aims at investigating the influence of partial replacement of portland cement with ultrafine fillers compared to limestone powder on the durability and mechanical characteristics of concrete. for this purpose, ultrafine calcium carbonate materials with different specific surface areas of 9.7 and 15.1 m2/g and limestone powder (0.72 m2/g) were used. the results indicate that the ultra...

The substitution of portland clinker by supplementary cementitious materials (SCMs) is one the main avenues for further decarbonization cement production. To secure future SCM supplies, generic and performance-related test methods SCMs are required. International Union Laboratories Experts in Construction Materials, Systems Structures (RILEM) Technical Committee 267-Tests Reactivity (TRM) recom...

This study investigated the influence of ordinary Portland cement (OPC) and reactive non-reactive mineral additives on characteristic microstructure mechanical performance ultra-high-performance, strain-hardening cementitious composites (UHP–SHCCs). Nine mixes were considered composed materials, such as ground granulated blast furnace slag (GGBS), silica fume (SF), kiln dust (CKD), flour. Compr...

Supplementary cementitious materials (SCM) are used in concrete to reduce expansion due alkali-silica reaction. However, studies reported higher the field compared that of laboratory samples. This paper investigates effect temperature on alkali release from aggregates, leaching samples, and hydration alkali-binding capacity SCM. Aggregates contribute more alkalis alkaline solutions at temperatu...

The decades-long use of supplementary cementitious materials (SCMs) as replacements for ordinary Portland cement (OPC) by the and concrete industry is undergoing a resurgence in research activities related to goals addressing circular economy activities, well reduction CO2 emissions. Differences chemistry, mineralogy reactivity SCMs compared OPC impact fresh properties concrete. Some exhibit gr...

This paper presents the autogenic self-healing potential of Portland cement (PC) blends made with conventional supplementary cementitious materials (SCMs), to improve water-tightness by reducing overall pore size. Mortar samples were prepared mixing PC, sand and water, partially replacing PC either silica fume (SF), pulverised fuel ash (PFA), or ground granulated blast-furnace slag (GGBS). Dama...