Self-Healing and Re-Adhering Polymer-Cements with Improved Toughness

Description

Polymer-cement experiments were conducted in order to assess the chemical and thermal properties of various polymer-cement composites. This file set includes the following polymer-cement analyses:

Polymer-Cement Composite Synthesis
Polymer-Cement Interactions by Atomistic Simulations
Polymer-Cements Compressive Strength & Fracture Toughness
Polymer-Cements Fourier Transform Infrared Spectroscopy (FTIR) Analysis
Polymer-Cements Resistance to Thermal Shock-CO2 and H2SO4 Attack
Polymer-Cements Rheology Analysis
Polymer-Cements Self-Repairing Permeability Analysis
Polymer-Cements Scanning Electron Microscopy with Energy Dispersive X-Ray Spectroscopy (SEM-EDX) Compositional Analysis
Polymer-Cements Thermogravimetric Analysis (TGA) and Total Organic and Inorganic Carbon Analysis (TOC and TIC)
Polymer-Cements X-Ray Diffraction (XRD) Analysis

Resources

Name Format Description Link
Polymer-Cement Composite Synthesis.doc Doc Data table with polymer-cement compositions including water to cement ratio and polymer mass percentage based on mass of dry mix. Open resource
Polymer-Cement Interactions by Atomistic Simulations.doc 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). Open resource
Polymer-Cements Compressive Strength and Fracture Toughness.doc 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. Open resource
Polymer-Cements FTIR Analysis.doc 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). Open resource
Polymer-cements Resistance to Thermal Shock-CO2 and H2SO4 Attack.pptx Powerpoint 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. Open resource
Polymer-Cements Rheology Analysis.docx Doc 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). Open resource
Polymer-Cements Self-Repairing Permeability Analysis.doc Doc 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 (%). Open resource
Polymer-Cements SEM-EDX Compositional Analysis.docx 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. Open resource
Polymer-Cements TGA and TOC Analysis.docx Doc 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). Open resource
Geothermal Data Repository_Polymer-cements XRD analysis.docx Doc X-ray diffraction analysis on 10% polymer-cement composites and conventional wellbore cement (control cement). Includes graphs of Intensity vs Two-Theta (deg). Open resource

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