self-healing-and-re-adhering-polymer-cements-with-improved-toughness

The National Renewable Energy Laboratory in the US specializes in the research and development of renewable energy, energy efficiency, energy systems integration, and sustainable transportation.

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National Renewable Energy Laboratory (NREL)

Data table with polymer-cement compositions including water to cement ratio and polymer mass percentage based on mass of dry mix.

Polymer-Cement Composite Synthesis.doc

Atomistic simulations to learn about chemical interactions between polymer moieties and cement matrix. Includes graphs of a radial distribution function of atomic pairs of molecules' atoms (O, S, H) and bonding charge densities (0.003 au isosurface value).

Polymer-Cement Interactions by Atomistic Simulations.doc

Evaluation of mechanical properties on PNNL's novel polymer-cement composite materials. Includes a 
 graph of compressive strength for replicate samples and a table of fracture toughness.

Polymer-Cements Compressive Strength and Fracture Toughness.doc

Chemical analysis using transmission Fourier transform infrared spectroscopy (FTIR) to identify the presence of the polymer in the cement composite materials. Includes a graph of Percent Transmittance vs. Wave Number (cm^-1).

Polymer-Cements FTIR Analysis.doc

Presentation about the exposure of PNNL's polymer-cement composites to thermal shock, mineral acid attack and CO2 brines followed by compressive strength analysis. Includes a thorough summary of the cement composites' bulk thermal properties.

Polymer-cements Resistance to Thermal Shock-CO2 and H2SO4 Attack.pptx

Consistency measurements on control cements as well as polymer-cement composites to learn about flowabillity of  PNNL's cements under geothermal conditions. Includes plots of Dynamic Yield Strength (Pa) vs Time from Mixing (min) in addition to plots of Consistency (mPa*sec) vs Time from Mixing (min).

Polymer-Cements Rheology Analysis.docx

Evaluation of self-repairing ability of PNNL's polymer-cement composites as compared to conventional wellbore cement by applying a shear fracture along a cement cylinder with apertures 0.3-0.5mm. PNNL's polymer-cement composites showed decrease in permeability by 60-87% after self-healing at 200 C/5days.  Includes a plot of Permeability before heal and after heal (cm^2) and a plot of Ratio of Reduction in Permeability (%).

Polymer-Cements Self-Repairing Permeability Analysis.doc

Topology, microstructure and compositional analysis of polymer-cement composites as compared to conventional wellbore cement using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX). Includes  plots of elemental make-up of each sample in various spectrums.

Polymer-Cements SEM-EDX Compositional Analysis.docx

Thermogravimetric analysis (TGA) and total organic and inorganic carbon analysis (TOC and TIC) on PNNL's polymer-cement composite materials and conventional cement. Includes plots of Mass % vs Temperature (deg C).

Polymer-Cements TGA and TOC Analysis.docx

X-ray diffraction analysis on 10% polymer-cement composites and conventional wellbore cement (control cement). Includes graphs of Intensity vs Two-Theta (deg).

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