page_title: Grout
hierarchical_section_title: Grout
caption_attribution_description: English: Senior Airman Omar Portillo, 28th Civil Engineer Squadron structural technician, applies grout to a bathroom tile floor in the 28th CES operations building on Ellsworth Air Force Base, S.D., Feb. 21, 2013. The grout must dry for 24 hours before the tile is cured to guarantee the floor is a flat, clean surface that will last years longer than the previous vinyl flooring.
context_page_description: Grout is a dense fluid which is used to fill gaps or used as reinforcement in existing structures. Grout is generally a mixture of water, cement, and sand and is employed in pressure grouting, embedding rebar in masonry walls, connecting sections of pre-cast concrete, filling voids, and sealing joints such as those between tiles. Common uses for grout in the household include filling in tiles of shower floors and kitchen tiles. It is often color tinted when it has to be kept visible and sometimes includes fine gravel when being used to fill large spaces. Unlike other structural pastes such as plaster or joint compound, correctly mixed and applied grout forms a water resistant seal.
  Although both grout and its close relative mortar are applied as a thick emulsion and harden over time, grout is distinguished by its low viscosity and lack of lime; grout is thin so it flows readily into gaps, while mortar is thick enough to support not only its own weight, but also that of masonry placed above it.
context_section_description: Grout is a dense fluid which is used to fill gaps or used as reinforcement in existing structures.  Grout is generally a mixture of water, cement, and sand and is employed in pressure grouting, embedding rebar in masonry walls, connecting sections of pre-cast concrete, filling voids, and sealing joints such as those between tiles. Common uses for grout in the household include filling in tiles of shower floors and kitchen tiles. It is often color tinted when it has to be kept visible and sometimes includes fine gravel when being used to fill large spaces (such as the cores of concrete blocks). Unlike other structural pastes such as plaster or joint compound, correctly mixed and applied grout forms a water resistant seal.
  Although both grout and its close relative mortar are applied as a thick emulsion and harden over time, grout is distinguished by its low viscosity and lack of lime (added to mortar for pliability); grout is thin so it flows readily into gaps, while mortar is thick enough to support not only its own weight, but also that of masonry placed above it.
caption: Smoothing grout between tiles with a rubber grout float.
exif: {"Image Make": "NIKON CORPORATION", "Image Model": "NIKON D3", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Lightroom 3.4.1", "Image DateTime": "2013:02:22 10:59:01", "Image ExifOffset": "206", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "918", "Thumbnail JPEGInterchangeFormatLength": "11749", "EXIF ExposureTime": "1/125", "EXIF FNumber": "5", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "640", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2013:02:21 14:00:11", "EXIF DateTimeDigitized": "2013:02:21 14:00:11", "EXIF ShutterSpeedValue": "870723/125000", "EXIF ApertureValue": "290241/62500", "EXIF ExposureBiasValue": "-2/3", "EXIF MaxApertureValue": "3", "EXIF SubjectDistance": "47/100", "EXIF MeteringMode": "CenterWeightedAverage", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash fired, compulsory flash mode, return light detected", "EXIF FocalLength": "24", "EXIF SubSecTimeOriginal": "50", "EXIF SubSecTimeDigitized": "50", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CVAPattern": "[2, 0, 2, 0, 0, 1, 1, 2]", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF FocalLengthIn35mmFilm": "24", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "Low gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal", "EXIF SubjectDistanceRange": "0", "EXIF BodySerialNumber": "2096562", "EXIF LensSpecification": "[24, 70, 14/5, 14/5]", "EXIF LensModel": "24.0-70.0 mm f/2.8"}