Sökning: "penetrability"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet penetrability.

  1. 1. Interpreting Mental Rotation Performance in Self-Described Aphantasia through Cognitive Penetrability

    Master-uppsats, Umeå universitet/Institutionen för psykologi

    Författare :Dániel Pénzes; [2023]
    Nyckelord :mental imagery debate; cognitive penetrability; aphantasia; VVIQ; OSIQ; mental rotation;

    Sammanfattning : Mental images are unique mental representations and the depictive view in the imagery debate states that mental images have similar spatial structures as their corresponding external object. The propositional view, however, contends that beliefs about the external world influence a mental image – also known as the cognitive penetrability theory –, therefore mental images cannot be described in visual terms. LÄS MER

  3. 2. Reduktion av injekteringstid : cementbruks reologiska egenskaper och dess effekt vid injektering

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Wilhelm Åberg; [2022]
    Nyckelord :Västlänken; injektering; cement; reologi; rheometer;

    Sammanfattning : Tunneldrivning är tidskrävande med varierande komplexitet från projekt till projekt, där en betydande del av sprängcykeln innefattar att låta injektering härda. Detta är tid där tunneldrivandet står stilla. Ifall denna tid skulle kunna reduceras skulle entreprenörer kunna spara in resurser genom att kunna spränga tidigare. LÄS MER

  4. 3. Development of grout for deep shaft

    M1-uppsats, KTH/Byggteknik och design

    Författare :Karl Lindberg; Adam von Krusenstierna; [2021]
    Nyckelord :Rock injection; Grout; Shaft; Laboration; Cement; Cement mixture; Bergsinjektering; Injekteringsbruk; Schakt; Laboration; Cement; Cementblandning;

    Sammanfattning : In tunnel engineering one of the most important factors are the groundwater flow. To solve this problem a method called grouting is commonly used. In this study grout mixes are developed based on specific requirements for a deep shaft located next to a body of water. LÄS MER

  5. 4. Dispersion of cement-based grout with ultrasound and conventional laboratory dissolvers

    Master-uppsats, KTH/Byggvetenskap

    Författare :Antranik Karamanoukian; [2020]
    Nyckelord :ultrafine cement grout; microfine cement grout; dispersion; additives; ultrasound dissolver; laboratory dissolver; ultrafint cementbruk; mikrofin cementbruk; dispergering; tillsatser; ultraljud apparat; laboratorieblandaren;

    Sammanfattning : In any underground facilities especially tunnels, it is essential to seal the area against water ingress and leakage of reserved materials. Grouting is a common method used to seal rocks around tunnels, successful grouting reduces the duration and cost of the construction, guarantees better working environment and higher safety, minimizes the maintenance and most important decreases the corresponding environmental hazards significantly. LÄS MER

  7. 5. Application of Dynamic Grouting to Improve the Grout Spread Using Varying Aperture Long Slot (VALS) : AN EXPERIMENTAL STUDY

    Master-uppsats, KTH/Jord- och bergmekanik; KTH/Byggvetenskap

    Författare :Robabeh Hosseini; Yalta Steven; [2018]
    Nyckelord :grout penetrability; filtration tendency; varying aperture long slot; sealing; cement-based grout; dynamic grouting; bruksinträngningsförmåga; filtrationstendens; VALS; tätning; cementbaserade injekteringsmedel; dynamisk injektering;

    Sammanfattning : In the past centuries, grouting has been one of the most common techniques in geotechnical engineering to strengthen and seal underground structures. Concerning increasing demands for tightness and cost efficiency, cement-based grout has been one the most frequent used materials. LÄS MER