Calcium Sulfo-Aluminate Based Accelerator for High-Strength Shotcrete in Japan
Low Temperature Solidification of CaCO3 Using Hydrothermal Hot-Pressing
Acceleration of Shotcrete by Calcium Aluminates Using Portland Cements From Different Countries and Different Cement Extenders with Particular Reference to Canadian Needs: A Brief Survey
Calcite Fracture Fillings as Indicators of Paleohydrology at the ?sp? Hard Rock Laboratory, Sweden
Calcite and Zeolite Fracture Coatings in Topopah Spring Tuff Along Drill Hole Wash, Yucca Mountain, Nevada
The Effect of Zero Gravity on Bones
Zero-gravity has created many problems for astronauts and researchers in space. Calcium depletion is cited as a major health problem. There are many different theories as to why zero-gravity...
Fluid Inclusion Studies of Calcite Veins from Yucca Mountain, Nevada, Tuffs: Environment of Formation
Progress in Understanding the Structure and Thermodynamics of Calcium Silicate Hydrates
Inferences of Paleoenvironment From Petrographic, Chemical and Stable-Isotope Studies of Calcretes and Fracture Calcites
Paleoclimatic and Paleohydrologic Records From Secondary Calcite: Yucca Mountain, Nevada
Durability of Calcium Aluminate Cement Concretes
Analysis of Sand Movement on Noto Coast by Geochemical Method
The analysis of sand samples by X - ray fluorescent spectroscopy (abbreviated by XRF) gives the ratio of the geochemical elements to construct the sand samples. This shows the geochemical...
Accelerator for Shotcrete Based Amorphous Calcium Aluminate
The authors developed an accelerator based on amorphous cacium aluminate named NATMIC for shotcrete. In Japan, accelerator based amorphous calcium aluminate are widely used in shotcrete...
Hydration Properties of Shotcrete with an Accelerator Based on Calcium Aluminate
A new powder-type accelerator based on calcium aluminate has been used for shotcrete in underground construction. This accelerator can be applied to all types of shotcreting. The shotcrete...
Properties of Bottom Ash-Based Composite
High-calcium bottom ash, a by-product of the electric power industry, was evaluated for feasibility of use as a fine aggregate in structural grade concrete. Both fresh and hardened properties...
Tropical Carbonate Coastal Processes
Evaluation and Rehabilitation of Clogged Drains at Concrete Gravity Dams
Studies have shown that properly spaced drains of adequate depth provide the principal means of relief from uplift pressures beneath concrete gravity dams. Drains often become encrusted...
Origin of Carbonate Deposits in the Vicinity of Yucca Mountain, Nevada: Preliminary Results of Strontium-Isotope Analyses
As part of the paleohydrology study of the Yucca Mountain Project, strontium-isotope analyses of carbonate deposits, ground water, and major rock reservoirs of strontium are in progress....
Removal of Scale from Potable Hot Water Systems by Carbon Dioxide Injections
An innovative method for inplace scale removal has been developed and demonstrated. Injection of carbon dioxide gas into a piping system can lower the pH of the hot water and remove or...
Selective Calcium Removal for Water Softening
The paper reports on a 'Water Quality Control Study' for the City of Lafayette, Louisiana. This paper focuses on the laboratory phase of the project. The City...
Return to search