Results 91 to 100 of about 98,572 (249)

Pre‐failure behavior of continuous post‐tensioned and post‐grouted beam in case of tendon failure

open access: yesStructural Concrete, EarlyView.
Abstract Grouted tendons are a common solution for long‐span bridge structures. The grout provides bond and corrosion protection for prestressing steel. However, if the grouting is defective, corrosion of the prestressing steel may initiate and eventually lead to tendon failure.
Olli Asp   +2 more
wiley   +1 more source

Research on the Mechanical Properties and NMR Characteristics of Cement Mortar during Freeze-Thaw Cycles

open access: yesAdvances in Civil Engineering, 2019
Low-field nuclear magnetic resonance (NMR) technology has the characteristics of nondestructive, rapid, and accurate. In the present paper, the mechanical properties and the size and distribution of pores of cement mortar during freeze-thaw cycles were ...
Taoying Liu   +4 more
doaj   +1 more source

Enhancing durability of steam‐cured precast concrete culverts using SCMs: A comparative study with delithiated beta spodumene

open access: yesStructural Concrete, EarlyView.
Abstract Steam curing is commonly used to manufacture precast culverts to accelerate early strength development. This study investigates the effect of supplementary cementitious materials (SCMs) on the permeability properties of steam‐cured precast concrete culverts.
Saugat Humagain   +3 more
wiley   +1 more source

Petrography of Potentially Alkali Reactive Sandstone from Argentina [PDF]

open access: yes, 2012
Petrographic characteristics of sandstone from the Province of Corrientes, Argentina, were studied. The rock has been classified as potentially alkali reactive in previous work using the accelerated mortar bar test method (ASTM C 1260).
Batic, Oscar R.   +2 more
core  

Potential of Orange Peel Ash as a Cement Replacement Material [PDF]

open access: yes, 2019
The potential of Orange peel ash (OPA) as a cement replacement material was investigated with focus on the effect of OPA content on the physicomechnical properties such as consistency, setting times, soundness, compressive and flexural strengths of OPA ...
Abdullahi, Basiru   +2 more
core   +2 more sources

Efflorescence of Cement Mortar

open access: yesJournal of the Ceramic Association, Japan, 1960
セメントとモルタルの配合に関する各種要因がエフロレセンスとこれに関連ある特性におよぼす影響について調べた. エフロレセンスはセメント中のアルカリ量を減じ, またモルタルを緻密にすることによって軽減される. モルタルの吸水, 乾燥および透水の速度は主として水セメント比が低く, 水和度の高いことによって減少する. したがってモルタルを緻密にするために粗目の砂を用い, 添加材として高炉水砕スラグの微粉末を一部セメントに置換して加えることはエフロレンス防止の面でも有効と思われる. ただしモルタルを富配合にすることは同時にアルカリ含有量を高めることになり明らかな効果をもたらさなかった.
Renichi KONDO   +2 more
openaire   +2 more sources

TRM‐to‐concrete interface bond without anchors: Combined experimental, analytical, and numerical modeling approach

open access: yesStructural Concrete, EarlyView.
Abstract Textile reinforced mortar (TRM) systems have emerged as an effective alternative to conventional FRP strengthening solutions due to their compatibility with concrete substrates and favorable performance under adverse environmental conditions.
Ömer Mercimek   +4 more
wiley   +1 more source

Pengaruh Perendaman Air Laut Terhadap Kualitas Mortar Semen [PDF]

open access: yes
This research of fabrication cement with adding sugarcane bagasse ash (SBA) as pozzolan. Then chemical composition of cement sample is measured by XRF, setting time of cement and mortar compressive strength is examined with and without immersion.
Damayanti, Mentari C.   +2 more
core  

Hybrid optimisation electromagnetic interference shielding effectiveness:mechanical and physical performance of plaster mortar containing palm oil fuel ash using taguchi grey and taguchi-flower pollination algorithm methods [PDF]

open access: yes, 2019
The rapid development of wireless telecommunications has revolutionarily modernized the global society, whereas it has created serious concerns on harmful effects of the electromagnetic interference (EMI) on human health and performance of electronic ...
Oh Lai Ching, Narong
core   +2 more sources

Influence of mix design method on the shear capacity of reinforced concrete beams made with high‐quality recycled coarse aggregate

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the shear capacity behavior of reinforced concrete (RC) beams without stirrups incorporating recycled coarse aggregate (RCA). An extensive database comprising 269 experimental data points from 40 journal articles published between 2001 and 2025 was compiled, excluding specimens with recycled fine aggregate or fiber ...
Sungchul Yang
wiley   +1 more source

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