1.
|
In Japan, coal-fired power is one of the main electric powers along with atomic power and natural gas -fired power. The annual amount of coal used for coal-fired power ge [...]
|
2.
|
In this research work, a method that gives indications for the fixation of heavy metals in hardened cement paste was developed. The concentrations of heavy metals in the [...]
|
3.
|
Fracture energy tests were carried out on Portland blast furnace cement-type B (BB) concrete where as an internal curing material, partial replacement of course aggregate [...]
|
4.
|
A new ecological concrete has been developed which utilizes CO2 emitted from a power plant and which can achieve CO2 emission levels below zero. This ecological concrete [...]
|
5.
|
Compared with the study on high-quality of recycled coarse aggregate, the study on recycling of recycled fine aggregate still has been limited. This study has quantitativ [...]
|
6.
|
The performance of concrete is increasingly designed through durability. Durable concrete is a driving force for a sustainable production and use of cement. One way to ac [...]
|
7.
|
Gypsum was widely used in the production of composite materials in Cyprus in the past, due to its abundance on the island. However, the study of local historic gypsum mor [...]
|
8.
|
Padevět, P.
Paper described material properties of cement pastes. Cement pastes were made from portland cement. Various water-cement ratio were used (from 0,3 to 0,5). From paste the [...]
|
9.
|
Reaction rims of natural hydraulic relicts in historic mortars were investigated using a novel technology, a FTIR-spectrometer equipped with a focal plane array detector [...]
|
10.
|
Pozzolan blended cement hydration reactions, the most promising route towards the sustainability of cementitious materials, have been simulated by Hymostruc, a numerical [...]
|
11.
|
High quality recycling aggregate nearly same with virgin aggregate has been passionately developing in the recent years due to the establishment of the low emission socie [...]
|
12.
|
Waste concrete accounts for a substantial fraction of construction waste, and the recycling of waste concrete as concrete aggregate for construction is an important chall [...]
|
13.
|
The study aims at using Shirasu, which is a pyroclastic flow deposit like volcanic ash, as one of the binders in mortar or concrete. It is one of the unused natural resou [...]
|
14.
|
Use of ultra high strength concrete (UHSC) is effective in improving durability of concrete structures which should lead to establishment of sustainable society. However, [...]
|
15.
|
Dating of mortars by means of radiocarbon dating is thought of being a promising technique for absolute dating of archaeological sites, monumental constructions and decor [...]
|
16.
|
It is a fact well known that the active additions improves the mechanical as well as de durability of concrete structures. Usually the materials are tested in laboratory [...]
|
17.
|
In this paper some production processes and possibilities of alkaline activation of fly ash are examined. This fly ash is used as a binder in new type of concrete without [...]
|
18.
|
This paper presents some preliminary results achieved within the scope of a research programme with the main objective of studying the effect of rice husk ash (RHA) parti [...]
|
19.
|
Fracture behaviour of concrete is studied using two-phase material model. Propagation of a single macrocrack in hardened cement paste (matrix) and aggregate (particle) is [...]
|
20.
|
This study investigates performance of slag as an alternative cementitious binder against ordinary Portland cement (OPC), fly ash (FA) and palm oil fuel ash (POFA). To ac [...]
|
21.
|
Lime-pozzolan mortars are often used for the restoration of historical buildings. Several studies have been developed in regards to the use of waste in construction mater [...]
|
22.
|
Pavlík, V.
Expansive forces arising in concrete due to alkali-silica reaction (ASR) can damage concrete structures. ASR in concrete can occur when aggregate contains reactive silica [...]
|
23.
|
Concrete is represented as a two-phase material in this paper. Behaviour of a crack with its tip on the interface between two different materials - hardened cement paste [...]
|
24.
|
Flow behavior of coarse-grained slurry depends generally on particle size, shape, density and concentration. The present paper describes the results of experimental inves [...]
|
25.
|
The development of innovative eco-efficient cementitious materials is, nowadays, a wide-spread concern to assure the sustainability of the built environment. In this scop [...]
|
26.
|
In this paper, effect of cement type and expansive additive content on resistance to both drying shrinkage cracking and thermal cracking of concrete using fly ash and gro [...]
|
27.
|
Compressive strength of concrete cubes containing rice husk ash (RHA) at low specific surface pre-soaked with equal weight of water, at free water/cement (w/c) ratio of 0 [...]
|
28.
|
For high fluidity concrete beams with medium-quality recycled coarse aggregate and melt-solidified slag aggregate, we investigated the fresh concrete properties and the b [...]
|
29.
|
Packing density is considered one of the most influential factors in fresh performances of mortar and concrete. There exist standardised methods for its determination, bo [...]
|
30.
|
In order to reduce the amount of CO2 gas in cement industry, the use of blended cement is valid. Share of blended cement in Japan, has not changed over last 10 years. One [...]
|
31.
|
This paper reports the potential reuse of incineration fly ash (IFA) as cement supplements in the production of engineered cementitious composites (ECC), a unique class o [...]
|
32.
|
Recently, blended cement is needed in order to lower the energy consumption and CO 2 emission from cement industries. On the other hand, waste management and environmenta [...]
|
33.
|
In this study, optimum combinations of the replacement ratios of fly ash (FA) and ground granulated blast-furnace slag (BS) with cement were examined from the aspect of p [...]
|
34.
|
The present paper is directed towards development of statistical models for the evaluation of efficiency factors of fly ash so that its contribution on concrete strength [...]
|
35.
|
Porous ceramic aggregate produced from roof tile waste was used as an internal curing agent. The aim of this study is to investigate the effect of the porous ceramic aggr [...]
|
36.
|
An experimental investigation was conducted to study the shear strength of full-scale beams constructed with both high-volume fly ash concrete (HVFAC) – concrete with a [...]
|
37.
|
Low calcium fly ash-based geopolymer (LCFG) concrete binder, which results from the reaction of a source material rich in silica & alumina (low calcium fly ash) and a [...]
|
38.
|
An experimental investigation was conducted to study both the mechanical and durability performance of various specimens constructed with both high-volume fly ash concret [...]
|
39.
|
The major environmental impact of concrete is caused by CO2-emissions during the cement production. Great potential for the reduction of the global warming potential and [...]
|
40.
|
Due to incentives to reduce greenhouse gas emissions during clinker production more and more of the clinker fraction of cement is being replaced with supplementary cement [...]
|
41.
|
This study investigated the performance of two high-volume fly ash concrete (HVFAC) mixes with 70% replacement of Portland cement with a Class C fly ash (with one mix hav [...]
|
42.
|
For high durability and strength, decreasing of the water to binder ratio of cement is needed by using of fly ash, blast furnace slag as mineral admixture. And it is poin [...]
|
43.
|
In order to reduce environmental loading, it is important to propose the way for the usage of large particles of Fly Ash. In this research, relationship between packing f [...]
|
guest ::